[
  {
    "genre": "@Basics 基本",
    "name": "Canon Flow",
    "progression": [ "C", "G/B", "Am", "C/G", "F", "C/E", "Dm7", "Dm7/G" ],
    "description_jp": "クラシック由来の美しい循環を持つカノン進行",
    "description_en": "A graceful circular motion inspired by the classic Canon progression"
  },
  {
    "genre": "@Basics 基本",
    "name": "Essential 1-4-5-1",
    "progression": [ "C", "F", "G", "C" ],
    "description_jp": "最も基本的で普遍的な王道進行",
    "description_en": "A universal and foundational I–IV–V–I progression"
  },
  {
    "genre": "@Basics 基本",
    "name": "Descending 4-3-2-1",
    "progression": [ "FM7", "Em7", "Dm7", "CM7" ],
    "description_jp": "滑らかに下降する美しいダイアトニック進行",
    "description_en": "A smooth descending diatonic progression"
  },
  {
    "genre": "@Basics 基本",
    "name": "Three-Chord Pop",
    "progression": [ "C", "G", "F" ],
    "description_jp": "多くのポップソングを支えるシンプルな3コード進行",
    "description_en": "A simple three‑chord pattern found in countless pop songs"
  },
  {
    "genre": "@Basics 基本",
    "name": "Classic 1-5-6-4",
    "progression": [ "C", "G", "Am", "F" ],
    "description_jp": "J-POPで定番の王道進行",
    "description_en": "The iconic I–V–vi–IV progression widely used in J‑Pop"
  },
  {
    "genre": "@Basics 基本",
    "name": "The Confirmation",
    "progression": [ "C", "Bm7-5", "E7", "Am7", "Gm7", "C7", "F", "C/E", "Dm7", "G7" ],
    "description_jp": "ジャズ名曲「Confirmation」に基づく複雑で美しい進行",
    "description_en": "A sophisticated progression inspired by Charlie Parker’s 'Confirmation'"
  },
  {
    "genre": "@Basics 基本",
    "name": "1-6-2-5 Cycle",
    "progression": [ "C", "Am", "Dm", "G" ],
    "description_jp": "I-vi-ii-V の定番循環進行",
    "description_en": "A classic I–vi–ii–V cycle progression"
  },
  {
    "genre": "@Basics 基本",
    "name": "Doo-Wop 1-6-4-5",
    "progression": [ "C", "Am", "F", "G" ],
    "description_jp": "50年代ドゥーワップで愛された甘い循環進行",
    "description_en": "A sweet nostalgic progression popular in '50s Doo‑Wop"
  },
  {
    "genre": "@Basics 基本",
    "name": "Jazz 2-5-1",
    "progression": [ "Dm7", "G7", "CM7" ],
    "description_jp": "ジャズの基礎となる II-V-I の王道進行",
    "description_en": "The essential II–V–I progression in jazz harmony"
  },
  {
    "genre": "@Basics 基本",
    "name": "Bright 1-3-6-2",
    "progression": [ "C", "E7", "Am", "D7" ],
    "description_jp": "明るく展開する 1362 の基本形",
    "description_en": "A bright and forward‑moving 1–3–6–2 progression"
  },
  {
    "genre": "@Basics 基本",
    "name": "Smooth 4-1-3-6",
    "progression": [ "F", "C", "E7", "Am" ],
    "description_jp": "滑らかに展開する 4136 進行",
    "description_en": "A smooth and expressive 4–1–3–6 progression"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Pop 4-1-5-6",
    "progression": [ "F", "C", "G", "Am" ],
    "description_jp": "ポップで親しみやすい 4156 進行",
    "description_en": "A friendly and pop‑oriented 4–1–5–6 progression"
  },
  {
    "genre": "@Basics 基本",
    "name": "Marusa 4-3-6-5-1",
    "progression": [ "FM7", "E7", "Am7", "C7", "G♭blk" ],
    "description_jp": "独特の緊張感を持つマルサ進行",
    "description_en": "A distinctive tension‑driven progression known as Marusa"
  },
  {
    "genre": "@Basics 基本",
    "name": "Pop Rise 4-5-1-6",
    "progression": [ "F", "G", "C", "Am" ],
    "description_jp": "J-POPで多用される上昇感のある進行",
    "description_en": "A rising progression frequently used in J‑Pop hits"
  },
  {
    "genre": "@Basics 基本",
    "name": "Komuro Style 4-5-3-6",
    "progression": [ "F", "G", "Em", "Am" ],
    "description_jp": "小室サウンドを象徴する 4536 進行",
    "description_en": "A hallmark progression of the classic Komuro sound"
  },
  {
    "genre": "@Basics 基本",
    "name": "Anticipation 5-1-4-6",
    "progression": [ "G", "C", "F", "Am" ],
    "description_jp": "5度始まりで期待感を生む進行",
    "description_en": "A V‑starting progression that builds anticipation"
  },
  {
    "genre": "@Basics 基本",
    "name": "Emotional 6-4-1-5",
    "progression": [ "Am", "F", "C", "G" ],
    "description_jp": "切なく感動的な雰囲気を持つ進行",
    "description_en": "A sentimental and emotional progression"
  },
  {
    "genre": "@Basics 基本",
    "name": "Circular 6-4-5-1",
    "progression": [ "Am", "F", "G", "C" ],
    "description_jp": "自然な循環感を持つ 6451 進行",
    "description_en": "A smooth circular 6–4–5–1 progression"
  },
  {
    "genre": "@Basics 基本",
    "name": "Tension 6-6-5-5",
    "progression": [ "A7sus4", "A7", "F/G", "G7" ],
    "description_jp": "緊張感と推進力を併せ持つ 6655 進行",
    "description_en": "A tension‑rich progression with strong forward motion"
  },




  {
    "genre": "@Basics 基本",
    "name": "Ascending Flow",
    "progression": [ "C", "Dm", "Em", "F" ],
    "description_jp": "上行する滑らかな進行（1234進行）",
    "description_en": "A smooth ascending motion (degree: 1234)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Bright Step Drive",
    "progression": [ "C", "Dm", "G7", "Am" ],
    "description_jp": "明るく前進する定番の流れ（1256進行）",
    "description_en": "A bright forward-moving flow (degree: 1256)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Open Sky Colors",
    "progression": [ "C", "Em", "F", "G" ],
    "description_jp": "開放感のある王道ポップ進行（1345進行）",
    "description_en": "A classic open pop sound (degree: 1345)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Dream Loop",
    "progression": [ "C", "Em", "Am", "Em" ],
    "description_jp": "幻想的な循環感を持つ進行（1363進行）",
    "description_en": "A dreamy looping progression (degree: 1363)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Resolve",
    "progression": [ "C", "Em", "Am", "G" ],
    "description_jp": "柔らかく解決へ向かう流れ（1365進行）",
    "description_en": "A gentle resolving motion (degree: 1365)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Wide Step Rise",
    "progression": [ "C", "F", "Em", "Am" ],
    "description_jp": "広がりと上昇感のある進行（1436進行）",
    "description_en": "A wide rising motion (degree: 1436)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Bold Horizon",
    "progression": [ "CM7", "FM7", "G7sus4", "G7" ],
    "description_jp": "力強く広がる明快な進行（1455進行）",
    "description_en": "A bold expanding progression (degree: 1455)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Lifted Motion",
    "progression": [ "C", "G7", "Am", "Em" ],
    "description_jp": "持ち上がるような上昇感（1563進行）",
    "description_en": "A lifted rising motion (degree: 1563)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Gentle Turn",
    "progression": [ "C", "Am", "Dm", "G" ],
    "description_jp": "優しく回り込む循環（1625進行）",
    "description_en": "A gentle turning cycle (degree: 1625)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Echo",
    "progression": [ "C", "Am", "Em", "Am" ],
    "description_jp": "柔らかく反復する落ち着いた進行（1636進行）",
    "description_en": "A calm repeating motion (degree: 1636)"
  },

  {
    "genre": "@Basics 基本",
    "name": "Warm Return",
    "progression": [ "C", "Am", "F", "Dm" ],
    "description_jp": "温かく戻る落ち着いた進行（1642進行）",
    "description_en": "A warm returning motion (degree: 1642)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Classic Pop Loop",
    "progression": [ "C", "Am", "F", "G" ],
    "description_jp": "王道のポップ循環（1645進行）",
    "description_en": "A classic pop loop (degree: 1645)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Diatonic Walk",
    "progression": [ "Dm", "Em", "F", "G" ],
    "description_jp": "自然な流れのダイアトニック進行（2345進行）",
    "description_en": "A natural diatonic walk (degree: 2345)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Minor Glow",
    "progression": [ "Dm", "G7", "C", "Am" ],
    "description_jp": "マイナー感のある柔らかな進行（2516進行）",
    "description_en": "A soft minor-tinged motion (degree: 2516)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Shadow Steps",
    "progression": [ "Dm", "G", "Em", "Am" ],
    "description_jp": "影のあるステップ感（2536進行）",
    "description_en": "A shadowy stepwise motion (degree: 2536)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Minor Circle",
    "progression": [ "Em", "Am", "Dm", "G" ],
    "description_jp": "マイナー寄りの循環（3625進行）",
    "description_en": "A minor-flavored cycle (degree: 3625)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Lift",
    "progression": [ "Em", "Am", "F", "G" ],
    "description_jp": "柔らかく上昇する進行（3645進行）",
    "description_en": "A soft rising motion (degree: 3645)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Retro Turn",
    "progression": [ "F", "C", "Dm", "G" ],
    "description_jp": "どこか懐かしい回り込み（4125進行）",
    "description_en": "A nostalgic turning motion (degree: 4125)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Falling Steps",
    "progression": [ "F", "Em", "Dm", "C" ],
    "description_jp": "下降感のある印象的な進行（4321進行）",
    "description_en": "A memorable descending motion (degree: 4321)"
  },

  {
    "genre": "@Basics 基本",
    "name": "Bright Resolve",
    "progression": [ "F", "G", "C", "Am" ],
    "description_jp": "明るく解決する流れ（4516進行）",
    "description_en": "A bright resolving motion (degree: 4516)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Open Glide",
    "progression": [ "F", "G", "Em", "Am" ],
    "description_jp": "開放感のある滑らかな進行（4536進行）",
    "description_en": "An open smooth glide (degree: 4536)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Bold Loop",
    "progression": [ "F", "G", "Am", "G" ],
    "description_jp": "力強い循環感（4565進行）",
    "description_en": "A bold looping motion (degree: 4565)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Deep Return",
    "progression": [ "Am", "F", "C", "G" ],
    "description_jp": "深みのある戻り感（6415進行）",
    "description_en": "A deep returning motion (degree: 6415)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Descent",
    "progression": [ "Am", "F", "G", "C" ],
    "description_jp": "柔らかく下降する進行（6451進行）",
    "description_en": "A soft descending motion (degree: 6451)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Minor Echo",
    "progression": [ "Am", "G", "F", "G" ],
    "description_jp": "マイナー感のある反復（6545進行）",
    "description_en": "A minor echoing loop (degree: 6545)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Retro Spin",
    "progression": [ "F", "Em", "Am", "C" ],
    "description_jp": "レトロなスピン感（4361進行）",
    "description_en": "A retro spinning motion (degree: 4361)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Warm Lift",
    "progression": [ "F", "C", "G", "Am" ],
    "description_jp": "温かく上昇する進行（4156進行）",
    "description_en": "A warm rising motion (degree: 4156)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Spiral",
    "progression": [ "F", "C", "Em", "An" ],
    "description_jp": "柔らかいスパイラル感（4136進行）",
    "description_en": "A soft spiral motion (degree: 4136)"
  },

  {
    "genre": "@Basics 基本",
    "name": "Gentle Drift",
    "progression": [ "C", "Em", "Am", "Dm" ],
    "description_jp": "優しく漂う進行（1362進行）",
    "description_en": "A gentle drifting motion (degree: 1362)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Lift Minor",
    "progression": [ "C", "G", "Am", "F" ],
    "description_jp": "柔らかく上昇するマイナー寄りの進行（1564進行）",
    "description_en": "A soft minor-leaning rise (degree: 1564)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Minor Circle Deep",
    "progression": [ "Am", "F", "Dm", "G" ],
    "description_jp": "深みのあるマイナー循環（6425進行）",
    "description_en": "A deep minor cycle (degree: 6425)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Classic Turn",
    "progression": [ "Am", "C", "F", "Em" ],
    "description_jp": "クラシックな回り込み（6143進行）",
    "description_en": "A classic turning motion (degree: 6143)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Heroic Loop",
    "progression": [ "C", "F", "G", "C" ],
    "description_jp": "英雄的な堂々とした循環（1451進行）",
    "description_en": "A heroic bold loop (degree: 1451)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Bright Lift",
    "progression": [ "C", "F", "Am", "G" ],
    "description_jp": "明るく持ち上がる進行（1465進行）",
    "description_en": "A bright lifting motion (degree: 1465)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Rise",
    "progression": [ "C", "Em", "Am", "F" ],
    "description_jp": "柔らかく上昇する進行（1364進行）",
    "description_en": "A soft rising motion (degree: 1364)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Gentle Pop Turn",
    "progression": [ "C", "F", "Dm", "G" ],
    "description_jp": "優しいポップな回り込み（1425進行）",
    "description_en": "A gentle pop turn (degree: 1425)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Classic Resolve",
    "progression": [ "C", "G", "F", "C" ],
    "description_jp": "クラシックな解決感（1541進行）",
    "description_en": "A classic resolving motion (degree: 1541)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Minor Pulse",
    "progression": [ "Am", "C", "Am", "G" ],
    "description_jp": "マイナー感のある脈動（6165進行）",
    "description_en": "A minor pulsing motion (degree: 6165)"
  },

  {
    "genre": "@Basics 基本",
    "name": "Bold Minor Loop",
    "progression": [ "F", "Em", "Am", "G" ],
    "description_jp": "力強いマイナー寄りの循環（4365進行）",
    "description_en": "A bold minor-leaning loop (degree: 4365)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Shift",
    "progression": [ "C", "G", "Dm", "F" ],
    "description_jp": "柔らかく移り変わる進行（1524進行）",
    "description_en": "A soft shifting motion (degree: 1524)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Gentle Echo",
    "progression": [ "C", "F", "G", "F" ],
    "description_jp": "優しい反復感（1454進行）",
    "description_en": "A gentle echoing motion (degree: 1454)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Calm Return",
    "progression": [ "C", "Am", "C", "G" ],
    "description_jp": "落ち着いた戻り感（1615進行）",
    "description_en": "A calm returning motion (degree: 1615)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Pop Rise",
    "progression": [ "C", "Dm", "Em", "G" ],
    "description_jp": "柔らかく上昇するポップ進行（1235進行）",
    "description_en": "A soft rising pop motion (degree: 1235)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Warm Loop",
    "progression": [ "C", "F", "C", "G" ],
    "description_jp": "温かい反復感（1415進行）",
    "description_en": "A warm repeating motion (degree: 1415)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Minor Drive",
    "progression": [ "C", "Am", "G", "Am" ],
    "description_jp": "マイナー感のある推進力（1656進行）",
    "description_en": "A minor driving motion (degree: 1656)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Classic Cadence",
    "progression": [ "C", "G", "F", "G" ],
    "description_jp": "王道の終止感（1545進行）",
    "description_en": "A classic cadence feel (degree: 1545)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Epic Minor Rise",
    "progression": [ "C", "Bdim", "Em", "G" ],
    "description_jp": "劇的な上昇感（1735進行）",
    "description_en": "An epic rising motion (degree: 1735)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Epic Minor Drive",
    "progression": [ "C", "Bdim", "Em", "Am" ],
    "description_jp": "劇的な推進力（1736進行）",
    "description_en": "An epic driving motion (degree: 1736)"
  },

  {
    "genre": "@Basics 基本",
    "name": "Tense Spin",
    "progression": [ "C", "F", "Bdim", "Em" ],
    "description_jp": "緊張感のあるスピン（1473進行）",
    "description_en": "A tense spinning motion (degree: 1473)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Minor Resolve",
    "progression": [ "C", "G", "Am", "G" ],
    "description_jp": "マイナー寄りの解決（1565進行）",
    "description_en": "A minor resolving motion (degree: 1565)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Minor Lift",
    "progression": [ "C", "Am", "Em", "Bdim" ],
    "description_jp": "マイナー感のある上昇（1637進行）",
    "description_en": "A minor rising motion (degree: 1637)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Color Shift",
    "progression": [ "C", "Em", "G", "F" ],
    "description_jp": "柔らかい色彩変化（1354進行）",
    "description_en": "A soft color shift (degree: 1354)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Gentle Minor Turn",
    "progression": [ "C", "G", "Em", "Dm" ],
    "description_jp": "優しいマイナー回り込み（1532進行）",
    "description_en": "A gentle minor turn (degree: 1532)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Minor Echo Rise",
    "progression": [ "C", "Am", "G", "Em" ],
    "description_jp": "マイナー寄りの上昇（1653進行）",
    "description_en": "A minor echoing rise (degree: 1653)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Epic Minor Loop",
    "progression": [ "C", "Bdim", "Am", "G" ],
    "description_jp": "劇的なマイナー循環（1765進行）",
    "description_en": "An epic minor loop (degree: 1765)"
  },
  {
    "genre": "@Basics 基本",
    "name": "Tense Return",
    "progression": [ "C", "F", "Bdim", "C" ],
    "description_jp": "緊張からの帰着（1471進行）",
    "description_en": "A return from tension (degree: 1471)"
  },




  {
    "genre": "Pop",
    "name": "1-4-3-6",
    "progression": [ "C", "F", "Em", "Am" ],
    "description_jp": "感情に訴えかける切ない進行",
    "description_en": "A sentimental progression that appeals to emotions"
  },
  {
    "genre": "Pop",
    "name": "Pop-Punk Riff",
    "progression": [ "C", "G", "Am", "G" ],
    "description_jp": "ポップパンクで定番のパワーコード進行",
    "description_en": "A standard power chord progression in pop-punk"
  },
  {
    "genre": "Pop",
    "name": "Secondary Dominant Spice",
    "progression": [ "C", "A7", "Dm", "G7" ],
    "description_jp": "セカンダリードミナントでスパイスを加えた進行",
    "description_en": "A progression spiced up with a secondary dominant"
  },
  {
    "genre": "Pop",
    "name": "Minor Blues",
    "progression": [ "Am7", "Dm7", "Am7", "E7" ],
    "description_jp": "マイナーキーでのブルース進行の基本形",
    "description_en": "The basic form of a blues progression in a minor key"
  },
  {
    "genre": "Chromatic",
    "name": "Chromatic Pop Drive",
    "progression": [ "C", "C#dim7", "Dm7", "G7" ],
    "description_jp": "半音上昇で勢いをつけるポップ進行",
    "description_en": "A chromatic rise that injects pop energy"
  },
  {
    "genre": "Pop",
    "name": "Augmented Lift",
    "progression": [ "C", "Eaug", "Am7", "D7" ],
    "description_jp": "Eaugで一気に浮遊感を出す王道変化球",
    "description_en": "Eaug adds a sudden lift and dreamy color"
  },
  {
    "genre": "Pop",
    "name": "Bright 6th Colors",
    "progression": [ "C6", "Am7", "F6", "G6" ],
    "description_jp": "6thコードで明るく爽やかな雰囲気",
    "description_en": "A bright, refreshing sequence using 6th chords"
  },
  {
    "genre": "Pop",
    "name": "Soft 6th Colors",
    "progression": [ "C6", "Am7", "F6", "G9" ],
    "description_jp": "6thコードで柔らかく明るい雰囲気",
    "description_en": "A soft and bright sequence using 6th chords"
  },
  {
    "genre": "Pop",
    "name": "Soft Lydian Pop",
    "progression": [ "CM7", "G/B", "Am7", "FM9" ],
    "description_jp": "ポップで柔らかいリディアン進行",
    "description_en": "A soft pop progression with Lydian flavor"
  },
  {
    "genre": "Pop",
    "name": "Soft Minor Glow",
    "progression": [ "CM7", "Am9", "FM7", "G9" ],
    "description_jp": "メジャーにマイナーの柔らかさを混ぜる",
    "description_en": "A major progression softened with minor glow"
  },
  {
    "genre": "Pop",
    "name": "Slash Cascade",
    "progression": [ "C/E", "F/A", "G/B", "C" ],
    "description_jp": "分数コードで上昇感を作るシンプルな流れ",
    "description_en": "Ascending slash chords create a smooth lift"
  },
  {
    "genre": "Pop",
    "name": "Tritone Pop Spice",
    "progression": [ "C", "F#7", "F", "G7" ],
    "description_jp": "トライトーンでポップにスパイスを加える",
    "description_en": "A pop progression spiced with tritone jumps"
  },
  {
    "genre": "Pop",
    "name": "Altered Dominant Pop",
    "progression": [ "C", "A7+5", "Dm9", "G7+5" ],
    "description_jp": "ポップにオルタードを混ぜた進行",
    "description_en": "A pop progression flavored with altered dominants"
  },
  {
    "genre": "Pop",
    "name": "Altered Pop Drive",
    "progression": [ "C", "E7+5", "Am7", "G7+5" ],
    "description_jp": "ポップにオルタードを混ぜた進行",
    "description_en": "A pop progression flavored with altered chords"
  },
  {
    "genre": "Rock",
    "name": "Classic Rock 3-Chord",
    "progression": [ "C", "F", "G" ],
    "description_jp": "ロックの基本となる3コード進行",
    "description_en": "The fundamental 3-chord progression of rock"
  },
  {
    "genre": "Rock",
    "name": "Blues Rock Power",
    "progression": [ "C", "Bb", "F", "C" ],
    "description_jp": "ブルースロックで多用される力強い進行",
    "description_en": "A powerful progression common in blues rock"
  },
  {
    "genre": "Rock",
    "name": "Minor Key Anthem",
    "progression": [ "Am", "G", "C", "F" ],
    "description_jp": "ロックアンセムでよく聞かれるマイナー進行",
    "description_en": "A minor key progression often heard in rock anthems"
  },
  {
    "genre": "Rock",
    "name": "Southern Rock Feel",
    "progression": [ "C", "G", "D", "Am" ],
    "description_jp": "サザンロック風の明るくも切ない進行",
    "description_en": "A bright yet bittersweet progression with a Southern rock feel"
  },
  {
    "genre": "Rock",
    "name": "Classic Rock Stomp",
    "progression": [ "E7", "G", "A", "E7" ],
    "description_jp": "クラシックロックの力強い定番進行",
    "description_en": "A powerful, classic rock progression"
  },
  {
    "genre": "Rock",
    "name": "Smoke on the Water",
    "progression": [ "Gm", "Bb", "C", "Gm" ],
    "description_jp": "有名なロックリフに基づく進行",
    "description_en": "Progression based on a famous rock riff"
  },
  {
    "genre": "Rock",
    "name": "Sweet Home Alabama",
    "progression": [ "D", "C", "G", "D" ],
    "description_jp": "サザンロックの象徴的な進行",
    "description_en": "An iconic Southern rock progression"
  },
  {
    "genre": "Jazz",
    "name": "Autumn Leaves",
    "progression": [ "Am7", "D7", "G", "CM7" ],
    "description_jp": "「枯葉」の有名なコード進行",
    "description_en": "The famous chord progression of 'Autumn Leaves'"
  },
  {
    "genre": "Jazz",
    "name": "Coltrane Changes",
    "progression": [ "CM7", "Eb7", "AbM7", "B7" ],
    "description_jp": "コルトレーンチェンジの基本パターン",
    "description_en": "The basic pattern of Coltrane Changes"
  },
  {
    "genre": "Jazz",
    "name": "Bird Blues",
    "progression": [ "CM7", "Bbm7", "Eb7", "AbM7", "Am7", "D7", "Dm7", "G7" ],
    "description_jp": "チャーリー・パーカーによるブルースの再解釈",
    "description_en": "Charlie Parker's reinterpretation of the blues"
  },
  {
    "genre": "Jazz",
    "name": "Lady Bird Turnaround",
    "progression": [ "CM7", "Ebm7", "Ab7", "DbM7" ],
    "description_jp": "タッド・ダメロンによる有名なターンアラウンド",
    "description_en": "A famous turnaround by Tadd Dameron"
  },
  {
    "genre": "Jazz",
    "name": "Altered Dominant Spiral",
    "progression": [ "CM7", "A7+5", "Dm9", "G7+5" ],
    "description_jp": "オルタードを連続させてスパイラル感を演出",
    "description_en": "Stacked altered dominants create a spiraling tension"
  },
  {
    "genre": "Jazz",
    "name": "Altered II-V",
    "progression": [ "Dm9", "G7-5", "CM9", "A9" ],
    "description_jp": "オルタードII-Vを含む進行",
    "description_en": "A jazz-oriented altered II-V resolving into CM7"
  },
  {
    "genre": "Chromatic",
    "name": "Chromatic Dominant Chain",
    "progression": [ "G7", "Ab7", "A7", "Bb7" ],
    "description_jp": "半音で連続するドミナントチェーン",
    "description_en": "A chromatic chain of dominant chords"
  },
  {
    "genre": "Chromatic",
    "name": "Chromatic II-V Maze",
    "progression": [ "Dm7", "G7", "Dbm7", "Gb7", "Cm7", "F7" ],
    "description_jp": "半音でずれるII-Vが迷路のように展開",
    "description_en": "Chromatic II-V cycles create a maze-like motion"
  },
  {
    "genre": "Chromatic",
    "name": "Chromatic II-V Rise",
    "progression": [ "Dm7", "G7", "D#m7", "G#7", "Em7", "A7" ],
    "description_jp": "半音で上昇するII-Vの連続",
    "description_en": "A rising chain of chromatic II-V movements"
  },
  {
    "genre": "Chromatic",
    "name": "Descending M7 Colors",
    "progression": [ "CM7", "BbM7", "AbM7", "G9" ],
    "description_jp": "メジャー7thを半音で下降させる豪華な進行",
    "description_en": "A lush chromatic descent of major 7th chords"
  },
  {
    "genre": "Chromatic",
    "name": "Descending M9 Path",
    "progression": [ "CM9", "BM9", "BbM9", "AM9" ],
    "description_jp": "M9を半音で下降させる豪華な進行",
    "description_en": "A luxurious chromatic descent of M9 chords"
  },
  {
    "genre": "Jazz",
    "name": "Heavenly 9th Flow",
    "progression": [ "Cadd9", "G/B", "Am9", "FM9" ],
    "description_jp": "9thを多用した透明感のある流れ",
    "description_en": "A transparent, airy progression built on 9ths"
  },
  {
    "genre": "Jazz",
    "name": "M7 Heaven",
    "progression": [ "CM7", "FM7", "Em7", "Am7" ],
    "description_jp": "メジャー7thの柔らかさを前面に出した進行",
    "description_en": "A soft, heavenly sequence of major 7th colors"
  },
  {
    "genre": "Jazz",
    "name": "M9 Heaven",
    "progression": [ "CM9", "FM9", "Em9", "Am9" ],
    "description_jp": "M9を多用した天国のような響き",
    "description_en": "Heavenly textures built on M9 chords"
  },
  {
    "genre": "Jazz",
    "name": "Tension Bloom",
    "progression": [ "CM9", "G9", "Am9", "FM9" ],
    "description_jp": "テンションが花開くように広がる進行",
    "description_en": "A blooming expansion of extended tensions"
  },
  {
    "genre": "Jazz",
    "name": "Tritone Mirage",
    "progression": [ "CM7", "F#9", "FM7", "B7-5" ],
    "description_jp": "トライトーンで幻想的に転調する進行",
    "description_en": "Tritone jumps create a surreal modulation effect"
  },
  {
    "genre": "Jazz",
    "name": "Warm 9th Colors",
    "progression": [ "CM9", "Am9", "FM9", "G6" ],
    "description_jp": "9thを中心に暖かい響きを作る",
    "description_en": "Warm textures built around 9th chords"
  },
  {
    "genre": "Jazz",
    "name": "Warm 9th Flow",
    "progression": [ "CM9", "Am9", "FM9", "G9" ],
    "description_jp": "9thを中心に暖かい響きを作る",
    "description_en": "Warm textures built around 9th chords"
  },
  {
    "genre": "Lofi",
    "name": "Lofi Chill Walk",
    "progression": [ "CM7", "E7+9", "Am9", "FM9" ],
    "description_jp": "ローファイ的なチル感のある進行",
    "description_en": "A chill lofi-inspired progression with warm colors"
  },
  {
    "genre": "Lofi",
    "name": "Rainy Day Lofi",
    "progression": [ "FM7", "G7", "CM7", "Am7" ],
    "description_jp": "雨の日のローファイ・ヒップホップに合う進行",
    "description_en": "A progression suitable for a rainy day lofi hip-hop track"
  },
  {
    "genre": "Lofi",
    "name": "Jazzy Hip Hop",
    "progression": [ "FM7", "Em7", "A7", "Dm7" ],
    "description_jp": "ジャジーなヒップホップでよく使われる進行",
    "description_en": "A common progression in jazzy hip-hop"
  },
  {
    "genre": "Lofi",
    "name": "Mellow M7 Loop",
    "progression": [ "CM7", "Am7", "Dm7", "G7" ],
    "description_jp": "メロウなローファイでループされるM7進行",
    "description_en": "A mellow M7 progression looped in lofi tracks"
  },
  {
    "genre": "Lofi",
    "name": "Distant Chill",
    "progression": [ "DbM7", "Cm7", "Bbm7", "AbM7" ],
    "description_jp": "キーから外れたチルな雰囲気の進行",
    "description_en": "An out-of-key progression with a chill vibe"
  },
  {
    "genre": "Funk",
    "name": "Classic Funk Groove",
    "progression": [ "E9", "A9" ],
    "description_jp": "クラシックなファンクのグルーヴを作る進行",
    "description_en": "A progression that creates a classic funk groove"
  },
  {
    "genre": "Funk",
    "name": "Funky Two-Five",
    "progression": [ "Dm9", "G9" ],
    "description_jp": "ファンクで定番のツーファイブ",
    "description_en": "A standard two-five in funk music"
  },
  {
    "genre": "Funk",
    "name": "R and B Flavor",
    "progression": [ "Cm7", "F7", "BbM7" ],
    "description_jp": "R and B風の滑らかなファンク進行",
    "description_en": "A smooth funk progression with an R and B flavor"
  },
  {
    "genre": "Funk",
    "name": "Dominant Chain Funk",
    "progression": [ "Am7", "D7", "G7", "C7" ],
    "description_jp": "ドミナントチェーンを使ったファンキーな展開",
    "description_en": "A funky progression using a dominant chain"
  },
  {
    "genre": "Cinematic",
    "name": "Epic Minor",
    "progression": [ "Cm", "Ab", "Eb", "Bb" ],
    "description_jp": "壮大なスケールのマイナーキー進行",
    "description_en": "A minor key progression on a grand scale"
  },
  {
    "genre": "Cinematic",
    "name": "Emotional Reveal",
    "progression": [ "C", "Gm", "F", "G" ],
    "description_jp": "サブドミナントマイナーを使った感動的なシーンに",
    "description_en": "For emotional scenes, using the subdominant minor"
  },
  {
    "genre": "Cinematic",
    "name": "Tension and Release",
    "progression": [ "Dm", "Bb", "F", "A" ],
    "description_jp": "緊張感と解放感を演出する進行",
    "description_en": "A progression that creates tension and release"
  },
  {
    "genre": "Ambient",
    "name": "Floating Sus Colors",
    "progression": [ "Csus2", "Fsus4", "G9sus4", "CM9" ],
    "description_jp": "サスコード中心の柔らかい浮遊感",
    "description_en": "A soft floating texture built on suspended chords"
  },
  {
    "genre": "Ambient",
    "name": "Soft Sus Flow",
    "progression": [ "Csus2", "Fsus2", "Gsus4", "CM7" ],
    "description_jp": "サスコードで柔らかく流れる進行",
    "description_en": "A gentle flow built on suspended chords"
  },
  {
    "genre": "Ambient",
    "name": "Suspended Air",
    "progression": [ "Csus2", "Gsus4", "FM9", "G9" ],
    "description_jp": "サスコード中心で浮遊感を演出",
    "description_en": "Suspended chords create a weightless atmosphere"
  },
  {
    "genre": "Ambient",
    "name": "Drone Pad",
    "progression": [ "Cadd9", "Am7/E", "Fsus2" ],
    "description_jp": "ドローンのような持続感と浮遊感を持つ進行",
    "description_en": "A progression with a drone-like sustain and floating feel"
  },
  {
    "genre": "Ambient",
    "name": "Bass Movement",
    "progression": [ "Dm7", "G/B", "C", "Am7/G" ],
    "description_jp": "ベースの動きが特徴的なアンビエント進行",
    "description_en": "An ambient progression characterized by bass movement"
  },
  {
    "genre": "Chromatic",
    "name": "Chromatic Bass Glide",
    "progression": [ "CM9", "Em/B", "G/Bb", "Am9", "FM9", "Em9", "Dm9", "G7sus4" ],
    "description_jp": "ベースが半音で下降するクリシェ進行",
    "description_en": "A chromatic bass descent creating a smooth cliché motion"
  },
  {
    "genre": "Chromatic",
    "name": "Minor Line Cliche",
    "progression": [ "Am", "AmM7", "Am7", "D7/F#" ],
    "description_jp": "マイナーコードのトップノートが半音で下降するクリシェ",
    "description_en": "A cliche where the top note of a minor chord descends chromatically"
  },
  {
    "genre": "City-Pop",
    "name": "Neo Tokyo Nights",
    "progression": [ "CM9", "E7+9", "A9", "D9sus4" ],
    "description_jp": "シティポップ的な夜景の雰囲気",
    "description_en": "City-pop inspired progression with neon vibes"
  },
  {
    "genre": "City-Pop",
    "name": "Tritone City Lights",
    "progression": [ "CM7", "F#7-5", "FM9", "B7+5" ],
    "description_jp": "都会的なトライトーン転調",
    "description_en": "Urban tritone modulations with bright tensions"
  },
  {
    "genre": "Modal",
    "name": "Lydian Dream Path",
    "progression": [ "CM7-5", "D6", "Em7", "FM7" ],
    "description_jp": "リディアンの光を感じる柔らかい進行",
    "description_en": "A soft path illuminated by Lydian brightness"
  },
  {
    "genre": "Modal",
    "name": "Lydian Soft Shift",
    "progression": [ "CM7", "Bm7-5", "E7+9", "Am9" ],
    "description_jp": "リディアンから一気にマイナーへ滑らかに移行",
    "description_en": "A smooth shift from Lydian brightness into minor warmth"
  },
  {
    "genre": "Modal",
    "name": "Lydian Splash",
    "progression": [ "CM7", "D/C", "E7", "FM7-5" ],
    "description_jp": "リディアンの浮遊感を強調した進行",
    "description_en": "A floating Lydian-flavored progression with bright tension"
  },
  {
    "genre": "Modal",
    "name": "Modal Shift Drive",
    "progression": [ "CM7", "EbM9", "FM9", "G9sus4" ],
    "description_jp": "モーダルインターチェンジを多用した進行",
    "description_en": "Heavy modal interchange creates rich color shifts"
  },
  {
    "genre": "Modal",
    "name": "Lydian Pop Shine",
    "progression": [ "CM7-5", "G/B", "Am7", "FM9" ],
    "description_jp": "リディアンの光を感じるポップ進行",
    "description_en": "A pop progression glowing with Lydian color"
  },
  {
    "genre": "Modal",
    "name": "Modal Interchange Pop",
    "progression": [ "C", "Ab", "Bb", "G7" ],
    "description_jp": "モーダルインターチェンジを使った王道変化球",
    "description_en": "A classic pop twist using modal interchange"
  },
  {
    "genre": "Chromatic",
    "name": "Neo-Soul Chromatic Dip",
    "progression": [ "CM9", "Bm7", "Bb7", "A7sus4" ],
    "description_jp": "半音下降のネオソウル的ディップ",
    "description_en": "A neo-soul chromatic dip with smooth motion"
  },
  {
    "genre": "Neo-Soul",
    "name": "Just the Two of Us",
    "progression": [ "DbM7", "C7", "Fm7", "Ebm7", "Ab7" ],
    "description_jp": "有名な「Just the Two of Us」の進行",
    "description_en": "The famous 'Just the Two of Us' progression"
  },
  {
    "genre": "Chromatic",
    "name": "Neo-Soul Glide",
    "progression": [ "CM9", "Bm7", "Bb9", "A7sus4" ],
    "description_jp": "半音下降のネオソウル的グライド",
    "description_en": "A neo-soul glide with chromatic downward motion"
  },
  {
    "genre": "Neo-Soul",
    "name": "Neo-Soul Velvet",
    "progression": [ "CM9", "E7+5", "A9", "D9sus4" ],
    "description_jp": "テンションを贅沢に使ったベルベットのような質感",
    "description_en": "A velvety neo-soul progression rich with tensions"
  },
  {
    "genre": "Chromatic",
    "name": "Chromatic Color Leap",
    "progression": [ "CM9", "E7+5", "A7sus4", "C#blk" ],
    "description_jp": "機能よりも色彩変化を重視したクロマチックな跳躍進行",
    "description_en": "A chromatic color-shift progression that prioritizes harmonic color over function, leaping from bright CM9 to tense E7+5, then to an ambiguous A7sus4 before landing on a C# blues cluster."
  },


  {
    "genre": "Pedal",
    "name": "Pedal Dream G",
    "progression": [ "G/C", "G/B", "Bb6", "Am9" ],
    "description_jp": "ペダルで幻想的な下降クリシェ",
    "description_en": "A dreamy pedal G with chromatic descent"
  },
  {
    "genre": "Pedal",
    "name": "Pedal Mirage",
    "progression": [ "C/G", "E/F#", "C/F", "C/E" ],
    "description_jp": "幻想的な下降クリシェ",
    "description_en": "A dreamy chromatic descent over a C pedal"
  },
  {
    "genre": "Pedal",
    "name": "Dreamy Pedal C",
    "progression": [ "CM9", "Bb/C", "Ab/C", "G/C" ],
    "description_jp": "ペダルで幻想的な雰囲気",
    "description_en": "A C pedal tone keeps a dreamy atmosphere"
  },
  {
    "genre": "@Smooth",
    "name": "Fading Light, Dark Echo",
    "progression": [ "FM7", "Em7", "Dm7", "G7sus4", "Em7", "Ebblk" ],
    "description_jp": "サス経由の解決からBlack Adderコードで不安定に傾く進行",
    "description_en": "A suspended-resolution flow that tilts into instability with a Black Adder dominant color"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth01",
    "progression": [ "FM7", "Fdim7", "Em7", "Ebdim7", "Dm7", "E7", "A7sus4", "A7" ],
    "description_jp": "ディミニッシュの経過和音を活かしたスムースで都会的な流れ",
    "description_en": "An urban smooth flow featuring passing diminished chords for harmonic motion"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth02",
    "progression": [ "C", "Bm7-5", "E7", "Am7", "Gm7", "C7" ],
    "description_jp": "コンファメ進行の一種",
    "description_en": "A confirming turnaround progression moving through a minor ii–V motion"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth03",
    "progression": [ "FM7", "Em7", "Am7", "Dm7", "E7", "Am7", "Gm7", "C7" ],
    "description_jp": "反復を含むマイナー寄りのウォームな循環進行",
    "description_en": "A warm, minor-leaning cyclical progression with repeating phrases"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth04",
    "progression": [ "F#m7-5", "Fm6", "Em7", "A7", "D#blk", "Dm7", "C/E", "FM7", "C7" ],
    "description_jp": "Black Adderコードが深い不安定さを加える奥行きのある進行",
    "description_en": "A deep progression where a Black Adder chord adds dramatic instability and dominant pull"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth05",
    "progression": [ "FM7", "Fdim7", "Em7", "G/A", "D#blk", "Dm9", "G9sus4" ],
    "description_jp": "短い中にBlack Adderコードで強い緊張感を残す進行",
    "description_en": "A short progression leaving a strong tension accent through a Black Adder dominant sound"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth06",
    "progression": [ "CM7", "Gbblk", "FM7", "Bbblk", "Am7", "Ebblk", "Dm7", "Gblk" ],
    "description_jp": "Black Adderコードを多用したコンファメ的で濃密なハーモニー進行",
    "description_en": "A dense block-style harmonic progression built around multiple Black Adder dominant colors"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth07",
    "progression": [ "C", "Fblk", "Em7", "Eb6", "Dm7", "Bb9", "Gsus4", "G7" ],
    "description_jp": "Black Adderコードを交えたカラフルなドミナントの流れ",
    "description_en": "A colorful dominant-driven progression featuring a striking Black Adder chord color"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth08",
    "progression": [ "CM7", "Bm7-5", "E7", "Am7", "Gm7", "C7", "F#m7-5", "Fm6", "Em7-5", "A7" ],
    "description_jp": "コンファメ進行の亜種",
    "description_en": "A smooth, continuously unfolding progression expanding through minor harmonic motion"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth09",
    "progression": [ "C/E", "F", "G", "E/G#", "Am7", "C/G", "D/F#", "Dm7", "F/G" ],
    "description_jp": "ベースの対旋律的動きを活かした流麗な進行",
    "description_en": "A flowing progression driven by countermelodic motion in the bass line"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth10",
    "progression": [ "FM7", "Fm7/Bb", "EbM7", "Ebm7/Ab", "DbM7", "Dbm7/Gb", "Ab7sus4", "Ab7" ],
    "description_jp": "平行調間を滑らかに行き来し、メジャー／マイナーの色彩変化を連続させる円環的な進行",
    "description_en": "A circular progression that moves smoothly through parallel major–minor colors, using gentle subdominant‑minor shifts to maintain a continuous flow"
  },
  {
    "genre": "Pop",
    "name": "Ascend Cascade",
    "progression": [ "C", "C/E", "F", "G/B", "Am", "G" ],
    "description_jp": "C メジャーの分散和音で上昇感を作る流れ",
    "description_en": "Ascending slash and spread chords in C major"
  },
  {
    "genre": "Pop",
    "name": "Heartbeat Variation",
    "progression": [ "C", "G/B", "Am", "F", "C", "G" ],
    "description_jp": "王道1-5-6-4をスラッシュでつないだバリエーション",
    "description_en": "Variation of 1-5-6-4 with slash chords"
  },
  {
    "genre": "Jazz",
    "name": "II-V Turnaround",
    "progression": [ "Dm7", "G7", "CM7", "E7", "Am7", "D7", "G7", "CM7" ],
    "description_jp": "C キー中心の II-V ターンアラウンド（セカンダリ含む）",
    "description_en": "II-V turnaround in C with secondary dominants"
  },
  {
    "genre": "Lofi",
    "name": "Midnight Lofi",
    "progression": [ "CM7", "Am7", "Dm7", "G7", "Em7", "Am7" ],
    "description_jp": "ローファイに合う穏やかな C メジャー進行",
    "description_en": "A mellow C major progression suitable for lofi"
  },
  {
    "genre": "Neo-Soul",
    "name": "Velvet Drop",
    "progression": [ "CM9", "Bm7-5", "E7+9", "Am9" ],
    "description_jp": "ネオソウル寄りのテンションを含む進行",
    "description_en": "Neo-soul flavored progression in C with tensions"
  },
  {
    "genre": "City-Pop",
    "name": "Neon C Shore",
    "progression": [ "CM9", "E7+9", "A9", "D9sus4", "G9" ],
    "description_jp": "シティポップ風の華やかな進行",
    "description_en": "City-pop shine in C with brief modulation colors"
  },
  {
    "genre": "Cinematic",
    "name": "Rising Tension",
    "progression": [ "C", "Am", "F", "G", "Em", "F", "G", "C" ],
    "description_jp": "劇的な上昇感を出すシネマティックな流れ",
    "description_en": "Cinematic build and release in C major"
  },
  {
    "genre": "Ambient",
    "name": "Drone Bloom",
    "progression": [ "Cadd9", "C/G", "FM7", "Am7", "Cadd9" ],
    "description_jp": "C のドローンに乗せた浮遊するアンビエント進行",
    "description_en": "Ambient drone bloom centered on C"
  },
  {
    "genre": "Funk",
    "name": "Groove One",
    "progression": [ "C7", "F9", "G9", "C7" ],
    "description_jp": "ファンキーなワンループ C グルーヴ",
    "description_en": "A funky one-loop groove in C"
  },
  {
    "genre": "Modal",
    "name": "Lydian Touch",
    "progression": [ "CM7-5", "D6", "Em7", "FM7", "C" ],
    "description_jp": "C を基調にしつつリディアンの色味を加えた進行",
    "description_en": "C-based progression with Lydian color"
  },
  {
    "genre": "Chromatic",
    "name": "Chromatic Descent",
    "progression": [ "C", "G/B", "Am", "Am7/G", "F", "E7", "Am", "G7" ],
    "description_jp": "ベースラインの半音下降を活かした C 進行",
    "description_en": "Chromatic bass descent within a C context"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth Soul",
    "progression": [ "CM7", "E7", "A7", "Dm7", "G7", "CM7" ],
    "description_jp": "ソウルフルでスムースな C キー進行",
    "description_en": "Smooth soul-like progression in C"
  },
  {
    "genre": "Blues",
    "name": "Modern Blues",
    "progression": [ "C7", "F9", "C7", "G7+5", "F9", "C7", "G7", "C7" ],
    "description_jp": "モダンな色付けをした C のブルース進行",
    "description_en": "Modern-tinged blues progression in C"
  },
  {
    "genre": "Neo-Soul",
    "name": "Half-Step Dip II",
    "progression": [ "CM9", "Bm7", "Bb9", "A7sus4", "Am7", "Dm7", "G7", "CM9" ],
    "description_jp": "半音下降の味付けを使ったネオソウル寄りの流れ",
    "description_en": "Neo-soul dip with half-step coloration in C"
  },
  {
    "genre": "Jazz",
    "name": "Coltrane-ish Turn",
    "progression": [ "CM7", "Eb7", "AbM7", "B7", "CM7" ],
    "description_jp": "C を基点にしたコルトレーン風の転調フレーズ",
    "description_en": "Coltrane-like shifts with C as a center"
  },
  {
    "genre": "Pop",
    "name": "Emotional Lift",
    "progression": [ "C", "Em", "F", "G", "Am", "F", "C" ],
    "description_jp": "感情を持ち上げるポップな C 進行",
    "description_en": "Emotional pop lift in C major"
  },
  {
    "genre": "Lofi",
    "name": "Rain Walk",
    "progression": [ "CM7", "Am7", "Dm7", "G7sus4", "G7", "CM7" ],
    "description_jp": "雨の日の散歩を想起させるローファイ向け進行",
    "description_en": "Lofi progression evoking a rainy walk in C"
  },

  {
    "genre": "Jazz",
    "name": "Modulation Loop F",
    "progression": [ "CM7", "Am7", "Dm7", "G7", "FM7", "Bm7-5", "E7", "AM7", "A7", "CM7" ],
    "description_jp": "C から F メジャーへ転調し、A メジャー経由で C に戻る循環進行",
    "description_en": "Modulation from C to F, passing through A major before returning to C"
  },
  {
    "genre": "Jazz",
    "name": "Modulation Loop G",
    "progression": [ "CM7", "Dm7", "G7", "GM7", "D7", "Em7", "A7", "D7", "G7", "CM7" ],
    "description_jp": "C から G メジャーへ転調し、循環して C に戻る進行",
    "description_en": "Modulation from C to G major and back in a circular motion"
  },
  {
    "genre": "Jazz",
    "name": "Chromatic Circle Turn",
    "progression": [ "CM7", "E7", "AM7", "C#7", "F#M7", "A7", "DM7", "G7", "CM7" ],
    "description_jp": "長３度ずつ上昇する転調循環（4度圏に沿った進行）",
    "description_en": "Chromatic circle-of-fifths modulation pattern from C"
  },
  {
    "genre": "Neo-Soul",
    "name": "Modal Cycle Eb",
    "progression": [ "CM9", "Dm7", "G7", "EbM9", "Fm7", "Bb7", "CM9" ],
    "description_jp": "C からモーダルインターチェンジで Eb へ転調し戻る",
    "description_en": "Modal interchange modulation from C to Eb and back"
  },
  {
    "genre": "Cinematic",
    "name": "Epic Distant Key",
    "progression": [ "C", "Am", "F", "G", "CM7", "Bb", "Eb", "F", "C" ],
    "description_jp": "C から遠い Bb・Eb を経由する壮大な循環",
    "description_en": "Epic journey through distant keys before returning to C"
  },
  {
    "genre": "Jazz",
    "name": "Half-Step Modulation Chain",
    "progression": [ "CM7", "Bm7", "E7", "A7", "Dm7", "G7", "CM7" ],
    "description_jp": "半音キーが下降する転調の循環（II-V-I パターンの連鎖）",
    "description_en": "Descending half-step key modulation through II-V-I chains"
  },
  {
    "genre": "City-Pop",
    "name": "Bright Modulation Turnaround",
    "progression": [ "CM9", "E7+9", "AM9", "C#m7-5", "F#7+9", "BM9", "Dm7", "G7", "CM9" ],
    "description_jp": "長３度ずつ上昇で複数キーを経由し C に戻る明るい進行",
    "description_en": "Bright major-third modulations cycling back to C"
  },
  {
    "genre": "@Smooth",
    "name": "Relative Minor Portal",
    "progression": [ "CM7", "Am9", "Dm7", "G7", "AbM7", "Ebm7", "Ab7", "CM7" ],
    "description_jp": "C の相対的マイナー(Am)を経由して Ab へ転調し C に戻る",
    "description_en": "Passing through relative minor (Am) to distant key Ab and back"
  },
  {
    "genre": "Jazz",
    "name": "Four-Key Spiral",
    "progression": [ "CM7", "G7", "GM7", "D7", "DM7", "A7", "AM7", "E7", "EM7", "B7", "CM7" ],
    "description_jp": "完全５度圏に沿って 4 つのキーを螺旋状に巡る",
    "description_en": "Spiral through four keys following the circle of fifths"
  },

  {
    "genre": "Jazz",
    "name": "Tritone Modulation Spiral",
    "progression": [ "CM7", "F#7", "F#M7", "B7", "BM7", "E7", "EM7", "A7", "AM7", "CM7" ],
    "description_jp": "トライトーン(増４度)ずつ上昇して C に戻る転調スパイラル",
    "description_en": "Tritone-based modulation spiral returning to C"
  },
  {
    "genre": "Neo-Soul",
    "name": "Tension Cycle Rich",
    "progression": [ "CM9", "Dm7-5", "G7+5", "CM9", "E7+9", "Am9", "Dm7-5", "G7+9", "CM9" ],
    "description_jp": "テンション音を贅沢に使いながら C を中心に循環",
    "description_en": "Lush extended tensions orbiting around C major"
  },
  {
    "genre": "Funk",
    "name": "Groove Rotation",
    "progression": [ "C7", "F9", "Bb7", "Eb7", "G7", "C7" ],
    "description_jp": "ファンク的なドミナント系コードの循環グルーヴ",
    "description_en": "A funky dominant chord rotation with groove pocket"
  },
  {
    "genre": "Lofi",
    "name": "Chill Loop Circle",
    "progression": [ "CM7", "F6", "Am7", "Dm7", "G7sus4", "Em7", "CM7" ],
    "description_jp": "ローファイの心地よさを保つ循環進行",
    "description_en": "A comforting lofi circle maintaining mellow vibes"
  },
  {
    "genre": "Pop",
    "name": "Bright Circle Shift",
    "progression": [ "C", "F", "G", "Em", "Am", "F", "G", "C" ],
    "description_jp": "ポップな明るさを保ちながら循環する基本進行",
    "description_en": "Bright pop progression cycling through familiar changes"
  },
  {
    "genre": "Ambient",
    "name": "Suspended Orbit",
    "progression": [ "Csus2", "Fsus2", "Gsus4", "Csus2", "Asus4", "Fsus2", "Gsus2", "Csus2" ],
    "description_jp": "サスコードのみで浮遊感を保つアンビエント循環",
    "description_en": "Suspended chords maintain weightless orbital motion around C"
  },
  {
    "genre": "Chromatic",
    "name": "Bass Spiral Down Up",
    "progression": [ "C", "G/B", "Am", "C/G", "F", "E/F#", "G", "C/E", "C" ],
    "description_jp": "ベースの半音動きで上下するクリシェ循環",
    "description_en": "Chromatic bass creates descending-ascending cliche loop"
  },
  {
    "genre": "Modal",
    "name": "Dorian Cycle Journey",
    "progression": [ "CM7", "Dm7", "Gm7", "Cm7", "Fm7", "Bb7", "Em7", "A7", "CM7" ],
    "description_jp": "ドリアン的な響きを複数キーで循環させる進行",
    "description_en": "Modal dorian colors cycling through multiple harmonic centers"
  },
  {
    "genre": "City-Pop",
    "name": "Neon Cycle",
    "progression": [ "CM9", "Am7", "Dm9", "G7+5", "C6", "E7+9", "A7sus4", "D9sus4", "CM9" ],
    "description_jp": "都会的なテンションと色彩を含む循環進行",
    "description_en": "Urban tensions and bright colors in a city-pop cycle"
  },

  {
    "genre": "@Basics 基本",
    "name": "2-5-1 Minor",
    "progression": [ "Bm7-5", "E7", "Am" ],
    "description_jp": "マイナーキーでの基本的なII-V-I進行",
    "description_en": "A basic II-V-I progression in a minor key"
  },
  {
    "genre": "@Basics 基本",
    "name": "1-4-5-1 Minor",
    "progression": [ "Am", "Dm", "E" ],
    "description_jp": "短調の基本的な1-4-5進行",
    "description_en": "A basic 1-4-5 progression in a minor key"
  },
  {
    "genre": "@Basics 基本",
    "name": "1-6-7-1 Minor",
    "progression": [ "Am", "F", "G", "Am" ],
    "description_jp": "マイナーキーでの感動的な上昇進行",
    "description_en": "An emotional ascending progression in a minor key"
  },
  {
    "genre": "@Basics 基本",
    "name": "1-4-7-3 Minor",
    "progression": [ "Am", "Dm", "G", "C" ],
    "description_jp": "メジャーへの解決感を持つ進行",
    "description_en": "A progression that resolves towards the relative major"
  },
  {
    "genre": "@Basics 基本",
    "name": "1-7-6-5 Minor",
    "progression": [ "Am", "G", "F", "E" ],
    "description_jp": "アンダルシア進行（フラメンコ進行）",
    "description_en": "Andalusian cadence (flamenco progression)"
  },
  {
    "genre": "@Basics 基本",
    "name": "6-7-1 Minor",
    "progression": [ "F", "G", "Am" ],
    "description_jp": "J-POPでも多用されるサブドミナントからの解決",
    "description_en": "Resolution from the subdominant, common in J-Pop"
  },
  {
    "genre": "Pop",
    "name": "Sentimental Minor Pop",
    "progression": [ "Am", "Em", "F", "C" ],
    "description_jp": "切ないポップス向けのマイナー進行",
    "description_en": "A sentimental minor progression for pop songs"
  },
  {
    "genre": "Pop",
    "name": "Minor Pop Ballad",
    "progression": [ "Am", "G", "F", "E7" ],
    "description_jp": "マイナーのポップバラードで定番の進行",
    "description_en": "A standard progression for minor-key pop ballads"
  },
  {
    "genre": "Pop",
    "name": "Minor Hookline",
    "progression": [ "Am", "C", "G", "Dm" ],
    "description_jp": "耳に残るフックを作るためのマイナー進行",
    "description_en": "A minor progression for creating a memorable hook"
  },
  {
    "genre": "Rock",
    "name": "Hard Rock Riff",
    "progression": [ "Am", "F", "G", "E" ],
    "description_jp": "ハードロックの力強いリフに使われる進行",
    "description_en": "A progression used for powerful hard rock riffs"
  },
  {
    "genre": "Rock",
    "name": "Alternative Rock",
    "progression": [ "Am", "C", "F", "G" ],
    "description_jp": "オルタナティブロックでよく聞かれる進行",
    "description_en": "A common progression in alternative rock"
  },
  {
    "genre": "Rock",
    "name": "Southern Rock Minor",
    "progression": [ "Am", "G", "D", "F" ],
    "description_jp": "サザンロック風の哀愁漂うマイナー進行",
    "description_en": "A melancholic minor progression with a Southern rock feel"
  },
  {
    "genre": "Blues",
    "name": "Jazzy Minor Blues",
    "progression": [ "Am7", "Dm7", "Am7", "A7", "Dm7", "D7", "Am7", "E7#9" ],
    "description_jp": "ジャズの要素を取り入れたマイナーブルース",
    "description_en": "A minor blues with added jazz elements"
  },
  {
    "genre": "Blues",
    "name": "Blues Turnaround",
    "progression": [ "Am", "Dm7", "Am7", "E7b9" ],
    "description_jp": "マイナーブルースのターンアラウンド",
    "description_en": "A minor blues turnaround"
  },
  {
    "genre": "Jazz",
    "name": "Minor II-V-I",
    "progression": [ "Bm7b5", "E7", "Am7" ],
    "description_jp": "マイナーキーの基本的なII-V-I",
    "description_en": "A basic II-V-I in a minor key"
  },
  {
    "genre": "Jazz",
    "name": "Autumn Leaves Turn",
    "progression": [ "Bm7b5", "E7", "Am7", "G7", "Cmaj7", "Fmaj7" ],
    "description_jp": "「枯葉」風のマイナーキーでの進行",
    "description_en": "'Autumn Leaves' style progression in a minor key"
  },
  {
    "genre": "Jazz",
    "name": "Latin Jazz Flavor",
    "progression": [ "Am7", "Dm7", "E7b9", "Am7" ],
    "description_jp": "ラテンジャズの風味を持つマイナー進行",
    "description_en": "A minor progression with a Latin jazz flavor"
  },
  {
    "genre": "Jazz",
    "name": "Bluesy Jazz Minor",
    "progression": [ "Am7", "F7", "E7", "Am7" ],
    "description_jp": "ブルージーな雰囲気を持つジャズマイナー進行",
    "description_en": "A jazzy minor progression with a bluesy feel"
  },
  {
    "genre": "Lofi",
    "name": "Lofi Groove",
    "progression": [ "Am7", "Dm9", "E7#9", "Am7" ],
    "description_jp": "ローファイヒップホップで使えるグルーヴィーな進行",
    "description_en": "A groovy progression for lofi hip-hop"
  },
  {
    "genre": "Lofi",
    "name": "Chillhop Minor",
    "progression": [ "Am7", "Gmaj7", "Cmaj7", "Fmaj7" ],
    "description_jp": "チルホップに合うメロウなマイナー進行",
    "description_en": "A mellow minor progression suitable for chillhop"
  },
  {
    "genre": "Lofi",
    "name": "Rainy Night Lofi",
    "progression": [ "Am9", "Dm7", "G9", "Cmaj9" ],
    "description_jp": "雨の夜をイメージさせるローファイ進行",
    "description_en": "A lofi progression that evokes a rainy night"
  },
  {
    "genre": "Lofi",
    "name": "Nostalgic Lofi",
    "progression": [ "Fmaj7", "E7", "Am7", "G7" ],
    "description_jp": "ノスタルジックな雰囲気のローファイ進行",
    "description_en": "A lofi progression with a nostalgic atmosphere"
  },
  {
    "genre": "Funk",
    "name": "Funk Groove",
    "progression": [ "Am7", "D9" ],
    "description_jp": "Aマイナーのファンク・グルーヴ",
    "description_en": "A minor funk groove"
  },
  {
    "genre": "Funk",
    "name": "Soulful Funk",
    "progression": [ "Am7", "Fmaj7", "G7", "Am7" ],
    "description_jp": "ソウルフルなAマイナーファンク",
    "description_en": "A soulful A minor funk progression"
  },
  {
    "genre": "Funk",
    "name": "James Brown Style",
    "progression": [ "A7#9", "D9" ],
    "description_jp": "ジェームス・ブラウン風のファンク進行",
    "description_en": "A James Brown style funk progression"
  },
  {
    "genre": "Cinematic",
    "name": "Sad Theme",
    "progression": [ "Am", "Em", "G", "C" ],
    "description_jp": "悲しいテーマのための感動的な進行",
    "description_en": "An emotional progression for a sad theme"
  },
  {
    "genre": "Cinematic",
    "name": "Mysterious Mood",
    "progression": [ "Am", "Bb", "Am", "E7" ],
    "description_jp": "ミステリアスな雰囲気を醸し出す進行",
    "description_en": "A progression that creates a mysterious atmosphere"
  },
  {
    "genre": "Ambient",
    "name": "Floating Pad",
    "progression": [ "Am7", "Fmaj7", "Cmaj7", "G" ],
    "description_jp": "浮遊感のあるアンビエントパッド進行",
    "description_en": "An ambient pad progression with a floating feel"
  },
  {
    "genre": "Ambient",
    "name": "Drone Sequence",
    "progression": [ "Am", "Am9", "Am" ],
    "description_jp": "ドローン的な持続音に合う進行",
    "description_en": "A progression for drone-like sustained sounds"
  },
  {
    "genre": "Ambient",
    "name": "Minimalist Ambient",
    "progression": [ "Am", "Em" ],
    "description_jp": "ミニマルなアンビエント向けの2コード",
    "description_en": "Two chords for minimalist ambient music"
  },
  {
    "genre": "Ambient",
    "name": "Dark Ambient",
    "progression": [ "Am", "Fm", "C", "G" ],
    "description_jp": "ダークな雰囲気のアンビエント進行",
    "description_en": "A dark ambient progression"
  },
  {
    "genre": "Ambient",
    "name": "Spacey Ambient",
    "progression": [ "Am9", "Gmaj7", "Fmaj9", "E7sus4" ],
    "description_jp": "宇宙的な広がりを感じさせるアンビエント",
    "description_en": "An ambient progression that evokes a sense of space"
  },
  {
    "genre": "Chromatic",
    "name": "Chromatic Bass Descent",
    "progression": [ "Am7", "G#aug", "C/G", "D/F#", "F", "Em", "Dm7", "Dm7/G" ],
    "description_jp": "ベースが半音で下降するクリシェ",
    "description_en": "A cliché with a descending chromatic bassline"
  },
  {
    "genre": "Chromatic",
    "name": "Minor Line Cliche",
    "progression": [ "Am", "AmM7", "Am7", "Am6" ],
    "description_jp": "マイナーコードのトップノートが半音で下降するクリシェ",
    "description_en": "A cliche where the top note of a minor chord descends chromatically"
  },
  {
    "genre": "Chromatic",
    "name": "Chromatic Approach",
    "progression": [ "Am", "Bbm7", "E7", "Am" ],
    "description_jp": "半音上のコードでターゲットにアプローチする",
    "description_en": "Approaching the target chord from a half-step above"
  },
  {
    "genre": "Chromatic",
    "name": "Chromatic II-V",
    "progression": [ "Bm7b5", "Bb7", "Am7" ],
    "description_jp": "II-Vにクロマチックな変化を加える",
    "description_en": "Adding a chromatic alteration to a II-V"
  },
  {
    "genre": "Chromatic",
    "name": "Chromatic Tension",
    "progression": [ "Am", "E7#9", "Fmaj7", "F#dim7", "Em/G", "Abm-5", "A7-5" ],
    "description_jp": "クロマチックコードで緊張感を加える",
    "description_en": "Using chromatic chords to add tension"
  },
  {
    "genre": "City-Pop",
    "name": "City Pop Night Drive",
    "progression": [ "Am9", "Gmaj7", "Fmaj7", "E7sus4" ],
    "description_jp": "シティポップの夜のドライブ感",
    "description_en": "A city pop night drive feel"
  },
  {
    "genre": "City-Pop",
    "name": "Seaside City Pop",
    "progression": [ "Fmaj7", "G7", "Em7", "Am7" ],
    "description_jp": "海辺のシティポップをイメージした進行",
    "description_en": "A progression inspired by seaside city pop"
  },
  {
    "genre": "City-Pop",
    "name": "Funky City Pop",
    "progression": [ "Am7", "Dm9", "G9", "Cmaj9" ],
    "description_jp": "ファンキーな要素を持つシティポップ",
    "description_en": "City pop with funky elements"
  },
  {
    "genre": "City-Pop",
    "name": "Sentimental City Pop",
    "progression": [ "Dm7", "G7", "Cmaj7", "Am7" ],
    "description_jp": "切ない雰囲気のシティポップ進行",
    "description_en": "A sentimental city pop progression"
  },
  {
    "genre": "City-Pop",
    "name": "Urban Groove",
    "progression": [ "Am7", "Bbmaj7", "Am7", "A7" ],
    "description_jp": "都会的なグルーヴ感のある進行",
    "description_en": "A progression with an urban groove"
  },
  {
    "genre": "Modal",
    "name": "Phrygian Cadence",
    "progression": [ "Am", "Bb", "C", "E" ],
    "description_jp": "フリジアンモードの特徴的な終止形",
    "description_en": "A characteristic cadence in the Phrygian mode"
  },
  {
    "genre": "Modal",
    "name": "Aeolian Vamp",
    "progression": [ "Am", "G", "F", "G" ],
    "description_jp": "エオリアンモード（自然的短音階）のヴァンプ",
    "description_en": "A vamp in the Aeolian mode (natural minor)"
  },
  {
    "genre": "Modal",
    "name": "Minor Lydian",
    "progression": [ "Am", "D", "F", "E" ],
    "description_jp": "リディアンの要素を取り入れたマイナー進行",
    "description_en": "A minor progression incorporating Lydian elements"
  },
  {
    "genre": "Modal",
    "name": "Modal Interchange",
    "progression": [ "Am", "Dbmaj7", "C", "F" ],
    "description_jp": "モーダルインターチェンジを使った進行",
    "description_en": "A progression using modal interchange"
  },
  {
    "genre": "Neo-Soul",
    "name": "Neo-Soul Groove",
    "progression": [ "Am9", "Gmaj7", "Fmaj7", "E7#9" ],
    "description_jp": "ネオソウルの心地よいグルーヴ",
    "description_en": "A smooth neo-soul groove"
  },
  {
    "genre": "Neo-Soul",
    "name": "D'Angelo Style",
    "progression": [ "Am7", "Bbmaj7", "Gm7", "C7" ],
    "description_jp": "ディアンジェロ風のネオソウル進行",
    "description_en": "A D'Angelo-style neo-soul progression"
  },
  {
    "genre": "Neo-Soul",
    "name": "Erykah Badu Vibe",
    "progression": [ "Am9", "Dm9", "G9", "CM9" ],
    "description_jp": "エリカ・バドゥを彷彿とさせる進行",
    "description_en": "A progression reminiscent of Erykah Badu"
  },
  {
    "genre": "Neo-Soul",
    "name": "Chromatic Neo-Soul",
    "progression": [ "Am7", "Ab7", "Gmaj7", "Gb7" ],
    "description_jp": "クロマチックな動きを取り入れたネオソウル",
    "description_en": "Neo-soul with chromatic movements"
  },
  {
    "genre": "Neo-Soul",
    "name": "Laid-back Neo-Soul",
    "progression": [ "Fmaj9", "E7#9", "Am9", "C9" ],
    "description_jp": "リラックスした雰囲気のネオソウル",
    "description_en": "A laid-back neo-soul progression"
  },
  {
    "genre": "Pedal",
    "name": "A Pedal Tone",
    "progression": [ "Am", "G/A", "F/A", "E/A" ],
    "description_jp": "Aのペダルトーン上でコードが変化する",
    "description_en": "Chords changing over an A pedal tone"
  },
  {
    "genre": "Pedal",
    "name": "E Pedal (Dominant)",
    "progression": [ "Am/E", "Dm/E", "Am/E", "F/E" ],
    "description_jp": "ドミナント(E)のペダルトーン",
    "description_en": "A dominant (E) pedal tone"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth Jazz Minor",
    "progression": [ "Am7", "Dm9", "G9", "Cmaj7" ],
    "description_jp": "スムーズジャズの定番マイナー進行",
    "description_en": "A standard smooth jazz minor progression"
  },
  {
    "genre": "@Smooth",
    "name": "Mellow Smooth",
    "progression": [ "Fmaj7", "G", "Em7", "Am7" ],
    "description_jp": "メロウな雰囲気のスムースな進行",
    "description_en": "A mellow and smooth progression"
  },
  {
    "genre": "@Smooth",
    "name": "Smooth Turnaround",
    "progression": [ "Bm7b5", "E7b9", "Am9" ],
    "description_jp": "スムーズなターンアラウンド",
    "description_en": "A smooth turnaround"
  },
  {
    "genre": "@Smooth",
    "name": "Late Night Smooth",
    "progression": [ "Dm9", "G9", "Cmaj9", "Am9" ],
    "description_jp": "深夜に合うスムーズな進行",
    "description_en": "A smooth progression for late night"
  },
  {
    "genre": "@Smooth",
    "name": "Soulful Smooth",
    "progression": [ "Am7", "Fmaj7", "G7", "Cmaj7" ],
    "description_jp": "ソウルフルな要素を持つスムーズな進行",
    "description_en": "A smooth progression with soulful elements"
  },
  {
    "genre": "BLK",
    "name": "王道進行と影",
    "progression": [ "Fmaj7", "G7", "Em7", "Am", "Ebblk", "Dm7", "G7", "C" ],
    "description_jp": "王道進行の中に、一時的に影を落とす借用和音(Eb)を挟んだ展開",
    "description_en": "A classic progression that inserts a borrowed chord (Eb) to create a temporary shadow."
  },
  {
    "genre": "BLK",
    "name": "駆け上がる衝動",
    "progression": [ "Am", "C/G", "F#blk", "FM7", "E7", "Ebblk", "Dm7", "Gblk" ],
    "description_jp": "ベースラインが半音で下降し、駆け上がるような衝動を生み出す進行",
    "description_en": "A progression where the bassline descends chromatically, creating a sense of rushing forward."
  },
  {
    "genre": "BLK",
    "name": "サビへの架け橋",
    "progression": [ "F", "G", "Am", "C", "C#blk", "Dm", "E7", "Am" ],
    "description_jp": "Bメロからサビへ向かう際の、期待感を高めるためのクリシェ進行",
    "description_en": "A cliché progression used to build anticipation from the pre-chorus to the chorus."
  },
  {
    "genre": "BLK",
    "name": "クリティカルヒット",
    "progression": [ "Dm7", "G7", "Cmaj7", "Abblk" ],
    "description_jp": "II-V-Iの解決後に意表を突くbVI(Ab)を配置し、強い印象を残す進行",
    "description_en": "A progression that leaves a strong impression by placing a surprising bVI (Ab) after a II-V-I resolution."
  },
  {
    "genre": "BLK",
    "name": "裏コードの緊張",
    "progression": [ "Am", "Dm7", "G#blk", "G7", "C" ],
    "description_jp": "ドミナントの代理として裏コード(G#)を使い緊張感を加える",
    "description_en": "Using a tritone substitution (G#) to add jazzy tension before the dominant."
  },
  {
    "genre": "BLK",
    "name": "宿命の対決",
    "progression": [ "Am", "G#blk", "C/G", "F#blk", "F", "E7" ],
    "description_jp": "ディミニッシュコードを連続させ、切迫した対決シーンを演出する",
    "description_en": "A series of diminished chords creates a sense of an urgent confrontation."
  },
  {
    "genre": "BLK",
    "name": "英雄の目覚め",
    "progression": [ "Am", "F", "C", "E", "F", "D#blk", "E7" ],
    "description_jp": "ドミナント(E7)へ向けて、ディミニッシュ(D#)で力強く解決させる英雄的な進行",
    "description_en": "A heroic progression that resolves powerfully to the dominant (E7) using a diminished chord (D#)."
  },
  {
    "genre": "BLK",
    "name": "涙のあと",
    "progression": [ "C", "F", "Fm", "C", "G", "Abblk", "G7" ],
    "description_jp": "サブドミナントマイナー(Fm)と借用和音(Ab)で感傷的なシーンを彩る進行",
    "description_en": "A progression that colors a sentimental scene using the subdominant minor (Fm) and a borrowed chord (Ab)."
  },
  {
    "genre": "BLK",
    "name": "希望と絶望の螺旋",
    "progression": [ "C", "G/B", "Am", "Gm6", "F#blk", "Fmaj7" ],
    "description_jp": "ベースラインが下降しながら、希望と絶望が入り混じる複雑な心境を表現する",
    "description_en": "Expresses a complex state of mind with mixed hope and despair through a descending bassline."
  },
  {
    "genre": "BLK",
    "name": "クロマティック・アセント",
    "progression": [ "CM7", "C#blk", "Dm7", "D#blk", "Em7", "Fblk" ],
    "description_jp": "上昇系のパッシング・ディミニッシュを使い、階段を駆け上がるような高揚感を出す",
    "description_en": "Uses ascending passing diminished chords to create a sense of exhilaratingly climbing stairs."
  },
  {
    "genre": "Pop",
    "name": "Royal Road Variant",
    "progression": [ "C", "G/B", "Am", "Em", "F", "C/E", "Dm7", "G" ],
    "description_jp": "J-POPで多用される王道進行の発展形",
    "description_en": "An expanded version of the classic J-pop royal road progression"
  },
  {
    "genre": "Ballad",
    "name": "Pachelbel Pop Loop",
    "progression": [ "C", "G", "Am", "Em", "F", "C", "F", "G" ],
    "description_jp": "カノン進行をポップス向けに短縮した形",
    "description_en": "A pop adaptation of the Pachelbel Canon progression"
  },
  {
    "genre": "Ballad",
    "name": "Let It Be Style",
    "progression": [ "C", "G", "Am", "F", "C", "G", "F", "C" ],
    "description_jp": "ビートルズの「Let It Be」風のシンプルで感動的な進行",
    "description_en": "A simple and moving progression in the style of The Beatles' 'Let It Be'"
  },
  {
    "genre": "Ballad",
    "name": "Imagine Style",
    "progression": [ "C", "CM7", "F" ],
    "description_jp": "ジョン・レノンの「Imagine」風の穏やかで平和な響き",
    "description_en": "A gentle and peaceful progression in the style of John Lennon's 'Imagine'"
  },
  {
    "genre": "Ballad",
    "name": "Bridge Style",
    "progression": [ "C", "F", "G7", "C" ],
    "description_jp": "サイモン&&ガーファンクルの名曲を彷彿とさせるゴスペル風進行",
    "description_en": "A gospel-influenced progression reminiscent of Simon && Garfunkel classics"
  },
  {
    "genre": "Ballad",
    "name": "Yesterday Style",
    "progression": [ "C", "Bm7-5", "E7", "Am", "Am7/G", "F", "G7", "C" ],
    "description_jp": "「Yesterday」のメランコリックな下降ラインをCキーで再現",
    "description_en": "The melancholic descending line of 'Yesterday' transposed to the key of C"
  },
  {
    "genre": "Ballad",
    "name": "Desperado Style",
    "progression": [ "C", "C7", "F", "Fm", "C", "Am7", "D7", "G7" ],
    "description_jp": "イーグルスの「Desperado」風の叙情的なピアノバラード進行",
    "description_en": "A lyrical piano ballad progression in the style of Eagles' 'Desperado'"
  },
  {
    "genre": "Ballad",
    "name": "Hallelujah Style",
    "progression": [ "C", "Am", "C", "Am", "F", "G", "C", "G" ],
    "description_jp": "レナード・コーエンの「Hallelujah」風の神聖な響き",
    "description_en": "A progression with a sacred, anthemic feel in the style of 'Hallelujah'"
  },
  {
    "genre": "Ballad",
    "name": "Someone Like You Style",
    "progression": [ "C", "G/B", "Am", "F" ],
    "description_jp": "アデルの「Someone Like You」風の切なく現代的なループ",
    "description_en": "A poignant modern ballad loop in the style of Adele's 'Someone Like You'"
  },
  {
    "genre": "Ballad",
    "name": "Honesty Style",
    "progression": [ "Am", "AmM7", "Am7", "D7", "F", "E7", "Am" ],
    "description_jp": "ビリー・ジョエルの「Honesty」風の重厚なクリシェを含む進行",
    "description_en": "A rich progression featuring a minor cliché, in the style of Billy Joel's 'Honesty'"
  },
  {
    "genre": "Pop",
    "name": "Dramatic Minor Lift",
    "progression": [ "Am", "G", "F", "C", "Dm", "E7", "Am" ],
    "description_jp": "マイナーからドミナントで盛り上げるドラマチックな進行",
    "description_en": "A dramatic minor progression that builds with a strong dominant"
  },
  {
    "genre": "Jazz",
    "name": "Altered Dominant Journey",
    "progression": [ "CM7", "E7+5", "Am9", "D7-5", "G7sus4", "G7", "CM7" ],
    "description_jp": "オルタードドミナントを使いながら循環しCに戻る進行",
    "description_en": "A progression using altered dominants that resolves back to C"
  },
  {
    "genre": "Neo-Soul",
    "name": "Minor-Major Color Flow",
    "progression": [ "AmM7", "Am7", "Dm9", "G7+5", "CM7", "F#m7b5", "B7", "Em69", "A7", "Dm7", "G7", "CM7" ],
    "description_jp": "mM7と69コードを含む滑らかな色彩変化の進行",
    "description_en": "A smooth color-shifting progression featuring mM7 and 69 chords"
  },
  {
    "genre": "Jazz",
    "name": "Lydian Augmented Drift",
    "progression": [ "CM7+5", "Em7", "A7sus4", "A7", "Dm7", "G7", "CM7" ],
    "description_jp": "リディアンオーギュメント感を持つ浮遊的な進行",
    "description_en": "A floating progression with a Lydian augmented feel"
  },
  {
    "genre": "Jazz",
    "name": "Chromatic Altered Walk",
    "progression": [ "Am9", "D7-5", "G7+5", "CM7", "F#7sus4", "F#7", "Bm7b5", "E7+5", "AmM7" ],
    "description_jp": "半音的な動きとオルタードを多用した進行",
    "description_en": "A fusion-style progression rich with chromatic and altered motion"
  },
  {
    "genre": "City-Pop",
    "name": "Urban Tension Loop",
    "progression": [ "CM9", "Caug", "Am7", "D7sus4", "D7", "G7+5", "Em7", "A7-5", "Dm9", "G7" ],
    "description_jp": "都会的な循環進行",
    "description_en": "An urban loop featuring augmented, suspended, and altered chords"
  },
  {
    "genre": "Jazz",
    "name": "Minor Cinematic Turn",
    "progression": [ "AmM7", "Am7", "Dm7", "G7sus4", "G7", "CM7", "E7+5", "Am69" ],
    "description_jp": "mM7から始まりドラマチックにAマイナーへ戻る進行",
    "description_en": "A cinematic minor progression that returns to A minor"
  },
  {
    "genre": "Neo-Soul",
    "name": "Velvet Altered Soul",
    "progression": [ "CM7", "E7+5", "Am9", "F#m7b5", "B7", "Em69", "A7sus4", "A7", "Dm9", "G7+5", "CM7" ],
    "description_jp": "ネオソウル風にテンションとオルタードを織り交ぜた進行",
    "description_en": "A neo-soul flavored progression rich in tensions and altered dominants"
  },
  {
    "genre": "Jazz",
    "name": "Augmented Spiral Return",
    "progression": [ "CM7+5", "Caug", "AmM7", "D7-5", "G7+5", "C6", "F7sus4", "F7", "CM7" ],
    "description_jp": "augと+5コードを軸にスパイラルしてCへ戻る進行",
    "description_en": "A spiral progression centered on augmented colors resolving to C"
  },
  {
    "genre": "Jazz",
    "name": "Suspended Tension Ride",
    "progression": [ "Am9", "D7sus4", "D7", "G7+5", "CM7", "F#7-5", "Bm7b5", "E7+5", "Am69" ],
    "description_jp": "susとオルタードを行き来しながらAマイナーへ戻る進行",
    "description_en": "A tension ride using suspended and altered chords resolving to A minor"
  },
  {
    "genre": "Jazz",
    "name": "Extended Color Resolution",
    "progression": [ "CM9", "E7+5", "AmM7", "Am7", "Dm9", "G7sus4", "G7", "CM7+5", "CM7" ],
    "description_jp": "拡張テンションと+5の響きを経てCに解決する進行",
    "description_en": "Extended tensions and augmented colors resolving to C major"
  },
  {
    "genre": "Slash Chords",
    "name": "Stepwise Pop Lift",
    "progression": [ "C", "G/B", "Am", "Em/G", "F", "C/E", "Dm7", "G", "C" ],
    "description_jp": "ポップスで多用されるベース上昇型スラッシュ進行",
    "description_en": "A pop-style slash progression with a rising bass motion"
  },
  {
    "genre": "Slash Chords",
    "name": "Gentle Ballad Walk",
    "progression": [ "Am", "Am7/G", "D/F#", "F", "C/E", "Dm7", "Gsus4", "G", "C" ],
    "description_jp": "バラード向きのしっとりしたベースライン進行",
    "description_en": "A gentle ballad progression with a lyrical bass walk"
  },
  {
    "genre": "Slash Chords",
    "name": "Cinematic Bass Climb",
    "progression": [ "C", "C/E", "F", "G/B", "Am", "Am7/G", "F", "G", "C" ],
    "description_jp": "映画音楽のようにベースが登っていく進行",
    "description_en": "A cinematic progression featuring a climbing bass line"
  },
  {
    "genre": "Slash Chords",
    "name": "Emotional Minor Rise",
    "progression": [ "Am", "C/G", "F", "C/E", "Dm7", "E7/G#", "Am", "G", "C" ],
    "description_jp": "Aマイナーから始まり感情的に盛り上がる進行",
    "description_en": "An emotional build starting in A minor and resolving to C"
  },
  {
    "genre": "Slash Chords",
    "name": "Pop Bass Cascade",
    "progression": [ "C", "G/B", "Am", "C/G", "F", "C/E", "Dm7", "G", "C" ],
    "description_jp": "分数コードでなめらかに流れる王道ポップ進行",
    "description_en": "A smooth pop progression flowing through slash chords"
  },
  {
    "genre": "Slash Chords",
    "name": "Minor to Major Story",
    "progression": [ "Am", "Am7/G", "F", "C/E", "Dm7", "G/B", "C", "F/A", "G", "C" ],
    "description_jp": "短調から長調へ物語のように展開する進行",
    "description_en": "A storytelling progression moving from minor to major"
  },
  {
    "genre": "Slash Chords",
    "name": "Floating Lydian Touch",
    "progression": [ "C", "D/C", "Em/B", "F/A", "G/B", "Am", "G", "F", "C" ],
    "description_jp": "浮遊感のあるリディアン風スラッシュ進行",
    "description_en": "A floating Lydian-flavored slash chord progression"
  },
  {
    "genre": "Slash Chords",
    "name": "Dramatic Turnaround Flow",
    "progression": [ "Am", "E/G#", "Am7/G", "D/F#", "F", "C/E", "Dm7", "G", "C" ],
    "description_jp": "ドラマチックな展開を作る分数コード主体の進行",
    "description_en": "A dramatic slash-based progression with expressive bass movement"
  },
  {
    "genre": "R&B",
    "name": "Smooth Neo-Soul Flow",
    "progression": [ "CM7", "Bm7b5", "E7#9", "Am9", "Dm9", "G9", "CM9" ],
    "description_jp": "ネオソウル定番の滑らかなツーファイブ系進行",
    "description_en": "A smooth neo-soul style II–V movement with rich extensions"
  },
  {
    "genre": "R&B",
    "name": "Late Night Groove",
    "progression": [ "Am9", "Dm9", "G9", "CM9", "Fmaj9", "Bm7b5", "E7#9", "Am9" ],
    "description_jp": "夜のムードに合う循環型R&B進行",
    "description_en": "A looping late-night R&B progression with jazzy color"
  },
  {
    "genre": "R&B",
    "name": "Silky Step Down",
    "progression": [ "CM9", "G/B", "Am9", "Em7", "Fmaj7", "E7#9", "Am9", "G9", "CM9" ],
    "description_jp": "ベース下降とテンションで作るシルキーな流れ",
    "description_en": "A silky progression using descending bass and lush tensions"
  },
  {
    "genre": "R&B",
    "name": "Soul Turnaround",
    "progression": [ "CM7", "A7#5", "Dm9", "G9", "Em7", "A7", "Dm9", "G9", "CM9" ],
    "description_jp": "ソウル風セカンダリードミナントを含む進行",
    "description_en": "A soulful turnaround featuring secondary dominants"
  },
  {
    "genre": "R&B",
    "name": "Warm Minor Mood",
    "progression": [ "Am9", "Em7", "Fmaj7", "Cmaj7", "Dm9", "E7#9", "Am9" ],
    "description_jp": "温かみのあるマイナー中心のR&B進行",
    "description_en": "A warm minor-centered R&B progression"
  },
  {
    "genre": "R&B",
    "name": "City Soul Colors",
    "progression": [ "CM9", "E7#9", "Am9", "F#m7b5", "B7#9", "Em9", "A9", "Dm9", "G9", "CM9" ],
    "description_jp": "都会的でカラフルなテンションを多用した進行",
    "description_en": "Urban soul colors with rich extended harmony"
  },
  {
    "genre": "R&B",
    "name": "Slow Jam Glide",
    "progression": [ "Am9", "AmM7", "Am7", "D9", "Dm9", "G9", "CM9" ],
    "description_jp": "クリシェラインを含むスロージャム向け進行",
    "description_en": "A slow jam progression with a descending minor cliché line"
  },
  {
    "genre": "R&B",
    "name": "Velvet Harmony Loop",
    "progression": [ "CM7", "Fmaj7", "Em7", "A7#9", "Dm9", "G9", "CM9" ],
    "description_jp": "柔らかく包み込むようなベルベット系進行",
    "description_en": "A velvety smooth R&B progression with gentle motion"
  },
  {
    "genre": "R&B",
    "name": "Dreamy Soul Lift",
    "progression": [ "CM9", "G9", "Am9", "Em9", "Fmaj9", "Fm9", "CM9" ],
    "description_jp": "サブドミナントマイナーを使ったドリーミーな響き",
    "description_en": "A dreamy sound using the subdominant minor color"
  },
  {
    "genre": "R&B",
    "name": "After Hours Turn",
    "progression": [ "Am9", "Dm9", "G9", "CM9", "E7#9", "Am9", "Fmaj7", "G9", "CM9" ],
    "description_jp": "深夜の雰囲気を感じさせるアフターアワーズ進行",
    "description_en": "An after-hours R&B progression with moody sophistication"
  },

  {
    "genre": "@Basics 基本",
    "name": "Basic Rising Motion",
    "progression": [ "C", "Dm", "Em", "F", "G" ],
    "description_jp": "Cメジャーで段階的に上昇する基本進行",
    "description_en": "A basic rising stepwise progression in C major"
  },
  {
    "genre": "@Basics 基本",
    "name": "Minor Resolve Basics",
    "progression": [ "Am", "G", "F", "E7", "Am" ],
    "description_jp": "Aマイナーでの基本的な解決進行",
    "description_en": "A fundamental resolution pattern in A minor"
  },
  {
    "genre": "@Basics 基本",
    "name": "Circle Fifth Mini",
    "progression": [ "C", "Am", "Dm", "G7", "C" ],
    "description_jp": "短い4度進行の循環",
    "description_en": "A short circle-of-fifths loop"
  },
  {
    "genre": "@Basics 基本",
    "name": "Soft Subdominant Path",
    "progression": [ "C", "F", "Dm7", "G7", "C" ],
    "description_jp": "柔らかいサブドミナントの流れ",
    "description_en": "A soft subdominant-driven motion"
  },
  {
    "genre": "@Basics 基本",
    "name": "Minor Pivot Basics",
    "progression": [ "C", "E7", "Am", "F", "G" ],
    "description_jp": "CからAマイナーへ一時的に転調する基本進行",
    "description_en": "A basic pivot modulation from C to A minor"
  },

  {
    "genre": "Pop",
    "name": "Pop Bright Loop",
    "progression": [ "C", "G", "Am", "Em", "F", "G", "C" ],
    "description_jp": "明るく爽やかなポップ循環",
    "description_en": "A bright and refreshing pop loop"
  },
  {
    "genre": "Pop",
    "name": "Pop Emotional Rise",
    "progression": [ "C", "Em", "F", "G", "Am", "F", "G", "C" ],
    "description_jp": "感情を盛り上げる上昇系ポップ進行",
    "description_en": "An emotional rising pop progression"
  },
  {
    "genre": "Pop",
    "name": "Pop Soft Minor Blend",
    "progression": [ "C", "Am", "F", "Fm", "C" ],
    "description_jp": "サブドミナントマイナーを使った柔らかい進行",
    "description_en": "A soft pop progression using the subdominant minor"
  },
  {
    "genre": "Pop",
    "name": "Pop Slash Flow",
    "progression": [ "C", "G/B", "Am", "F/A", "G", "C" ],
    "description_jp": "スラッシュコードで滑らかに流れる進行",
    "description_en": "A smooth pop flow using slash chords"
  },

  {
    "genre": "Rock",
    "name": "Rock Drive C",
    "progression": [ "C", "G", "F", "C", "G", "C" ],
    "description_jp": "Cメジャー中心の力強いロック進行",
    "description_en": "A driving rock progression centered on C"
  },
  {
    "genre": "Rock",
    "name": "Rock Mixolydian Edge",
    "progression": [ "C", "Bb", "F", "G", "C" ],
    "description_jp": "ミクソリディアン的なロックのエッジ感",
    "description_en": "A rock progression with a Mixolydian edge"
  },
  {
    "genre": "Rock",
    "name": "Rock Anthem Lift",
    "progression": [ "C", "F", "G", "Am", "F", "G", "C" ],
    "description_jp": "アンセム感のある上昇ロック進行",
    "description_en": "An anthemic rising rock progression"
  },
  {
    "genre": "Rock",
    "name": "Rock Modal Shift",
    "progression": [ "C", "Ab", "Bb", "G", "C" ],
    "description_jp": "モーダルインターチェンジを含むロック進行",
    "description_en": "A rock progression with modal interchange"
  },

  {
    "genre": "Blues",
    "name": "Slow Blues",
    "progression": [ "C7", "F7", "C7", "G7", "F7", "C7" ],
    "description_jp": "ゆったりしたCブルース進行",
    "description_en": "A slow blues progression in C"
  },
  {
    "genre": "Blues",
    "name": "Minor Blues Short",
    "progression": [ "Cm7", "Fm7", "Cm7", "G7", "Cm7" ],
    "description_jp": "短い形のCマイナーブルース",
    "description_en": "A short-form C minor blues"
  },
  {
    "genre": "Blues",
    "name": "Jazz Blues Lite",
    "progression": [ "C7", "F9", "C7", "A7", "Dm7", "G7", "C7" ],
    "description_jp": "ジャズ寄りの軽いブルース進行",
    "description_en": "A lightly jazz-influenced blues progression"
  },
  {
    "genre": "Blues",
    "name": "Turnaround Blues",
    "progression": [ "C7", "F7", "C7", "G7", "F7", "C7", "G7" ],
    "description_jp": "ターンアラウンドを含むCブルース",
    "description_en": "A C blues progression with a turnaround"
  },
  {
    "genre": "Blues",
    "name": "Minor Jazz Blues",
    "progression": [ "Cm7", "Fm7", "Cm7", "Ab7", "G7", "Cm7" ],
    "description_jp": "マイナーブルース",
    "description_en": "A jazz-colored C minor blues progression"
  },

  {
    "genre": "Jazz",
    "name": "Soft II-V-I",
    "progression": [ "Dm7", "G7", "CM7", "Am7", "D7", "G7", "CM7" ],
    "description_jp": "柔らかいII-V-Iを中心とした進行",
    "description_en": "A soft II-V-I centered jazz progression"
  },
  {
    "genre": "Jazz",
    "name": "Minor Modulation",
    "progression": [ "CM7", "E7", "Am7", "Dm7", "G7", "CM7" ],
    "description_jp": "CからAマイナーへ一時的に転調する",
    "description_en": "A jazz progression modulating briefly to A minor"
  },
  {
    "genre": "Jazz",
    "name": "Chromatic II-V Rise",
    "progression": [ "Dm7", "G7", "D#m7", "G#7", "Em7", "A7", "DM7" ],
    "description_jp": "半音で上昇するII-Vの連続",
    "description_en": "A rising chromatic chain of II-V pairs"
  },
  {
    "genre": "Jazz",
    "name": "Extended Color Flow",
    "progression": [ "CM9", "Am9", "Dm9", "G9", "CM9" ],
    "description_jp": "テンションを多用した滑らかな",
    "description_en": "A smooth jazz progression rich with extensions"
  },

  {
    "genre": "Lofi",
    "name": "Soft Rain Loop",
    "progression": [ "CM7", "Am7", "Dm7", "G7sus4", "CM7" ],
    "description_jp": "雨の日のような柔らかいローファイループ",
    "description_en": "A soft rainy-day lofi loop"
  },
  {
    "genre": "Lofi",
    "name": "Warm Tape Drift",
    "progression": [ "C6", "Am7", "Fmaj7", "G6", "C6" ],
    "description_jp": "テープ感のある温かいローファイ進行",
    "description_en": "A warm tape-like lofi progression"
  },
  {
    "genre": "Lofi",
    "name": "Midnight Glow",
    "progression": [ "CM7", "Em7", "Am7", "FM7", "CM7" ],
    "description_jp": "深夜の光を感じるローファイ進行",
    "description_en": "A midnight-glow lofi progression"
  },
  {
    "genre": "Lofi",
    "name": "Minor Blend Lofi",
    "progression": [ "CM7", "Am9", "Fm7", "G7", "CM7" ],
    "description_jp": "メジャーとマイナーを柔らかく混ぜたローファイ進行",
    "description_en": "A soft blend of major and minor colors in lofi"
  },
  {
    "genre": "Lofi",
    "name": "Dreamy Pad Loop",
    "progression": [ "Cadd9", "G/B", "Am7", "Fmaj7", "Cadd9" ],
    "description_jp": "パッド系に合う夢見心地のループ",
    "description_en": "A dreamy pad-friendly lofi loop"
  },




  {
    "genre": "@Basics 基本",
    "name": "C→E♭ Pivot Basics",
    "progression": [ "C", "G/B", "Am", "E7", "E♭M7", "A♭7", "C" ],
    "description_jp": "CからE♭へ一時的に転調する基本的なピボット進行",
    "description_en": "A basic pivot modulation from C to E♭ and back"
  },
  {
    "genre": "@Basics 基本",
    "name": "C→A Major Switch",
    "progression": [ "C", "Em", "F", "G", "E7", "A", "A7", "Dm", "G7", "C" ],
    "description_jp": "CからAメジャーへ転調し、II-Vで戻る基本形",
    "description_en": "A basic modulation from C to A major, returning via II–V"
  },
  {
    "genre": "@Basics 基本",
    "name": "Am→C# Minor Bridge",
    "progression": [ "Am", "G", "F", "E7", "C#7", "F#m", "B7", "Em" ],
    "description_jp": "AマイナーからC#マイナーへ橋渡しする進行",
    "description_en": "A bridge modulation from A minor to C# minor"
  },
  {
    "genre": "@Basics 基本",
    "name": "C→F# Tritone Jump",
    "progression": [ "C", "Am", "Dm7", "G7", "F#7", "B7", "Em7", "A7", "Dm7", "G7", "C" ],
    "description_jp": "トライトーン転調を含む基本的な循環",
    "description_en": "A basic cycle including a tritone modulation"
  },
  {
    "genre": "@Basics 基本",
    "name": "C→E Major Bright Shift",
    "progression": [ "C", "F", "G", "C", "G#dim7", "A", "E", "B7", "Em", "G7", "C" ],
    "description_jp": "CからEメジャーへ明るく転調する基本進行",
    "description_en": "A bright modulation from C to E major"
  },

  {
    "genre": "Pop",
    "name": "C→A♭ Pop Lift",
    "progression": [ "C", "G/B", "Am", "F", "E♭", "A♭", "Fm7", "G7", "C" ],
    "description_jp": "CからA♭へ大胆に転調するポップ進行",
    "description_en": "A bold pop modulation from C to A♭"
  },
  {
    "genre": "Pop",
    "name": "C→E Pop Shine",
    "progression": [ "C", "Em", "F", "G", "E", "B", "C#m", "A", "G#7", "C#m", "F#7", "B7", "Em", "C" ],
    "description_jp": "CからEメジャーへ華やかに転調するポップ進行",
    "description_en": "A shiny pop modulation from C to E major"
  },
  {
    "genre": "Pop",
    "name": "Am→G♭ Pop Twist",
    "progression": [ "Am", "G", "F", "E7", "G♭M7", "B7", "Em7", "A7", "Dm7", "G7", "C" ],
    "description_jp": "AマイナーからG♭メジャーへ意外性のある転調",
    "description_en": "A surprising modulation from A minor to G♭ major"
  },
  {
    "genre": "Pop",
    "name": "C→D Pop Rise",
    "progression": [ "C", "G/B", "Am", "F", "G", "D", "A", "Bm", "G", "A7", "D", "G", "C" ],
    "description_jp": "CからDメジャーへ上昇感のある転調",
    "description_en": "An uplifting modulation from C to D major"
  },
  {
    "genre": "Pop",
    "name": "C→B Pop Glide",
    "progression": [ "C", "Em", "F", "G", "B7", "E", "G#m", "A", "F#7", "Bm7", "E7", "Am", "G", "C" ],
    "description_jp": "CからBメジャーへ滑らかに転調する進行",
    "description_en": "A smooth glide from C to B major"
  },

  {
    "genre": "Rock",
    "name": "C→E Rock Drive",
    "progression": [ "C", "G", "F", "C", "E", "B", "A", "E", "G", "C" ],
    "description_jp": "CからEメジャーへ力強く転調するロック進行",
    "description_en": "A powerful rock modulation from C to E major"
  },
  {
    "genre": "Rock",
    "name": "Am→C# Rock Shift",
    "progression": [ "Am", "G", "F", "E", "C#", "A", "E", "B", "C", "G", "Am" ],
    "description_jp": "AマイナーからC#メジャーへ大胆に転調するロック進行",
    "description_en": "A bold rock modulation from A minor to C# major"
  },
  {
    "genre": "Rock",
    "name": "C→G♭ Mixolydian Rock",
    "progression": [ "C", "Bb", "F", "C", "G♭", "E", "A", "D", "G", "C" ],
    "description_jp": "CからG♭へミクソリディアン的に転調するロック進行",
    "description_en": "A Mixolydian-flavored modulation from C to G♭"
  },
  {
    "genre": "Rock",
    "name": "C→A Rock Anthem",
    "progression": [ "C", "F", "G", "C", "A", "E", "D", "A", "G", "C" ],
    "description_jp": "CからAメジャーへ転調する進行",
    "description_en": "An anthemic modulation from C to A major"
  },
  {
    "genre": "Rock",
    "name": "Am→F# Rock Tension",
    "progression": [ "Am", "G", "F", "E", "F#", "C#", "B", "F#", "E", "Am" ],
    "description_jp": "AマイナーからF#メジャーへ緊張感のある転調",
    "description_en": "A tension-filled modulation from A minor to F# major"
  },

  {
    "genre": "Blues",
    "name": "Blues → E Blues",
    "progression": [ "C7", "F7", "C7", "G7", "E7", "A7", "E7", "B7", "C7" ],
    "description_jp": "CブルースからEブルースへ転調する進行",
    "description_en": "A modulation from C blues to E blues"
  },
  {
    "genre": "Blues",
    "name": "Blues → C# Blues",
    "progression": [ "Am7", "Dm7", "Am7", "E7", "C#7", "F#7", "C#7", "G#7", "Am7" ],
    "description_jp": "AマイナーブルースからC#ブルースへ転調",
    "description_en": "A modulation from A minor blues to C# blues"
  },
  {
    "genre": "Blues",
    "name": "C→A Blues Turn",
    "progression": [ "C7", "F7", "C7", "G7", "A7", "D7", "A7", "E7", "C7" ],
    "description_jp": "CブルースからAブルースへ転調する進行",
    "description_en": "A modulation from C blues to A blues"
  },
  {
    "genre": "Blues",
    "name": "C→G♭ Chromatic Blues",
    "progression": [ "C7", "F7", "C7", "G7", "G♭7", "B7", "E7", "A7", "C7" ],
    "description_jp": "CからG♭へ半音転調する進行",
    "description_en": "A chromatic modulation from C to G♭ in a blues form"
  },

  {
    "genre": "Jazz",
    "name": "C→E♭ Jazz Pivot",
    "progression": [ "CM7", "Dm7", "G7", "CM7", "E♭M7", "A♭7", "Dm7", "G7", "CM7" ],
    "description_jp": "CからE♭へ転調",
    "description_en": "A jazz pivot modulation from C to E♭"
  },
  {
    "genre": "Jazz",
    "name": "C→A Jazz Cycle",
    "progression": [ "CM7", "E7", "Amaj7", "D7", "G7", "CM7" ],
    "description_jp": "CからAメジャーへII-Vで転調する",
    "description_en": "A II–V modulation from C to A major"
  },
  {
    "genre": "Jazz",
    "name": "Am→C# Jazz Minor Shift",
    "progression": [ "Am9", "Dm9", "G9", "CM9", "C#7", "F#m9", "B9", "E7#9", "Am9" ],
    "description_jp": "AマイナーからC#マイナーへ転調",
    "description_en": "A jazz modulation from A minor to C# minor"
  },
  {
    "genre": "Jazz",
    "name": "C→F# Tritone II-V",
    "progression": [ "CM7", "A7", "Dm7", "G7", "F#7", "B7", "Em7", "A7", "Dm7", "G7", "CM7" ],
    "description_jp": "トライトーンII-Vを含む転調",
    "description_en": "A jazz progression using tritone II–V modulation"
  },
  {
    "genre": "Neo-Soul",
    "name": "Chromatic Tension Bloom",
    "progression": [ "CM7", "B7-5", "Bbmaj7", "A7+5", "Dm9", "G7-5", "Caug" ],
    "description_jp": "テンションの開放感と7-5、+5の緊張感を織り交ぜた浮遊的な進行",
    "description_en": "Floating progression interweaving extended tensions, diminished sevenths, and augmented colors"
  },
  {
    "genre": "Jazz",
    "name": "Phrygian Descent to E",
    "progression": [ "Am7", "Bbm7", "Abmaj7", "G7+5", "Gbdim7", "Fm7", "E7sus4", "Em7", "E" ],
    "description_jp": "Am から半音単位で下降しながら E メジャーへ転調。フリジアンモードの暗さを活かした進行",
    "description_en": "Chromatic descent from A minor to E major with Phrygian darkness and sus4 transitions"
  },
  {
    "genre": "City-Pop",
    "name": "Neon Cascade with Borrowed Chords",
    "progression": [ "CM7", "C7sus4", "Fm7", "Bb7+5", "Ebm7-5", "Abmaj7", "G7-5", "CM7" ],
    "description_jp": "C から複数の借用和音で色彩的に遠回りしながら帰還。都会的で幻想的な響き",
    "description_en": "Distant borrowed chords create a neon-lit detour through harmonic colors before returning to C"
  },
  {
    "genre": "Jazz",
    "name": "Modal Spiral with Tritone Jump",
    "progression": [ "Am7", "Am7-5", "Dm7", "G7+5", "Caug", "C#dim7", "F#m7-5", "B7", "Em69", "A7", "Am" ],
    "description_jp": "Am を基軸に m7-5 で進行を複雑化。途中 C# 経由で F# 系へ転調後に相対メジャー Em で着地",
    "description_en": "A minor spiral using diminished sevenths and tritone substitution, resolving through E minor"
  },
  {
    "genre": "Ambient",
    "name": "Suspended Mirage with Augment Colors",
    "progression": [ "Csus2", "Caug", "Fsus4", "F7-5", "Bbsus2", "Bbaug", "Ebsus4" ],
    "description_jp": "sus2/sus4 と aug を交互に繰り返しながら、幻想的で宙ぶらりんな感覚を演出",
    "description_en": "Suspended and augmented chords alternate to create weightless, dreamlike suspension"
  },
  {
    "genre": "Pop",
    "name": "to Gm Modal Journey",
    "progression": [ "Am9", "D7sus4", "G7sus4", "C7sus4", "Fm7", "Bbmaj7", "Eb7", "Am" ],
    "description_jp": "Am で開始し、C を経由してモーダルインターチェンジで Gm 系へ転調。複雑だが回帰性のある進行",
    "description_en": "Modal interchange journey from A minor through C to Gm colors, with complex harmonic twists"
  },
  {
    "genre": "Jazz",
    "name": "Diminished Chain Ascent",
    "progression": [ "CM7", "Cdim7", "B7sus4", "B7+5", "Em7", "Edim7", "D#m7-5", "D#aug", "G#7", "CM7" ],
    "description_jp": "dim7 と M7 を交互に配置し、半音で上昇しながら G# 経由で C へトライトーン転調で回帰",
    "description_en": "Alternating diminished sevenths and major sevenths create a chromatic ascent with dramatic tritone return"
  },
  {
    "genre": "Neo-Soul",
    "name": "Cliché with m69 Color Shift",
    "progression": [ "Am7", "D7sus4", "G7-5", "Cm69", "F7+5", "Bbmaj7", "Bbm7-5", "Eb7", "Am7" ],
    "description_jp": "Am クリシェの途中で m69 コード（Cm69）を配置。相対マイナー系へ転調後、sus4 で曖昧さを保ちながら回帰",
    "description_en": "Minor seventh cliché interrupted by m69 color, modulating through borrowed chords with suspended returns"
  },
  {
    "genre": "Cinematic",
    "name": "Dark Progressive with blk Dominants",
    "progression": [ "Cadd9", "Fm7", "Bbblk", "Ebm7", "Abblk", "Dbmaj7", "Gbblk", "Cm7-5" ],
    "description_jp": "C add9 から始まり、blk（Black Adder）ドミナントを連続させて不気味で劇的な下降進行を演出",
    "description_en": "Dark chromatic descent using successive blk dominant colors creating cinematic tension"
  },
  {
    "genre": "Ambient",
    "name": "Floating Ambiguity with Extended Tensions",
    "progression": [ "A7sus4", "Dm7-5", "G7+5", "Cmaj9", "Em69", "A7sus4", "D7-5", "G7sus4", "Am7" ],
    "description_jp": "Am で開始し、sus4 と m7-5、add9、m69 を組み合わせながら曖昧性を保つ。最後 Gm で浮遊感を残したまま Am へ戻る",
    "description_en": "A minor suspension with extended ambiguity, floating through m7-5, add9, and m69 colors before uncertain return"
  },
  {
    "genre": "Pedal",
    "name": "Pedal C Modal Shift",
    "progression": [ "C", "Gm7/C", "Fm/C", "Gm7/C" ],
    "description_jp": "Cペダル上で上声がモーダルに揺れる幻想的な進行",
    "description_en": "A modal upper-voice shift over a static C pedal"
  },



  {
    "genre": "Cinematic",
    "name": "Nostalgic Descent",
    "progression": [ "C", "G/B", "Bb6", "A7", "Dm7", "Fm6", "C" ],
    "description_jp": "ベースラインがC→B→Bb→Aと下降していく温かくも切ないノスタルジックな進行",
    "description_en": "A warm and nostalgic progression with a descending bassline (C-B-Bb-A), evoking flashbacks typical of Ghibli films."
  },
  {
    "genre": "Future Bass",
    "name": "Lydian Future Pop",
    "progression": [ "CM7", "D7", "Bm7", "Em7" ],
    "description_jp": "Cから始まるがキーGの雰囲気（リディアン）を持つ。フューチャーベースやアニソンで多用される、浮遊感と透明感のある4コード",
    "description_en": "Starting on C with a Lydian feel (IV-V-iii-vi in G), this loop creates the floating, transparent vibe common in Future Bass."
  },
  {
    "genre": "Ethnic",
    "name": "Celtic Dorian Loop",
    "progression": [ "Am", "G", "Em", "Am" ],
    "description_jp": "ドリアンモード特有の土着的な響きを持つ、広大な緑のフィールドやRPGの冒険を連想させるケルト風ループ",
    "description_en": "A Celtic loop with a Dorian flavor, evoking images of vast green fields or RPG adventures."
  },
  {
    "genre": "Bossa Nova",
    "name": "Afternoon Bossa",
    "progression": [ "CM9", "D9", "Dm9", "Db9" ],
    "description_jp": "午後のカフェや海辺に合う、裏コード（Db9）を使って半音でCへ滑らかに解決する、洗練されたボサノバ進行",
    "description_en": "A sophisticated Bossa Nova progression suitable for a seaside afternoon, using a tritone substitute (Db9) for a smooth resolution."
  },
  {
    "genre": "J-Pop",
    "name": "Emotional Drive Start",
    "progression": [ "C", "E7", "Am7", "Gm7", "C7", "Fmaj7", "G7", "C" ],
    "description_jp": "いきなりE7（セカンダリードミナント）で感情を揺さぶり、サビの頭で強いインパクトを与えるJ-POPの王道パターン",
    "description_en": "A classic J-Pop pattern that starts with an emotional impact using a secondary dominant (E7), leading into a dramatic chorus."
  },
  {
    "genre": "Dark",
    "name": "Gothic Waltz",
    "progression": [ "Am", "Fmaj7", "E7", "Ebdim7" ],
    "description_jp": "最後のEbdim7（減七の和音）が不気味な余韻を残す、ゴシックホラーや洋館のミステリーに適したダークな進行",
    "description_en": "A dark progression suitable for gothic horror or mysteries, where the final diminished chord leaves an eerie, unresolved tension."
  },
  {
    "genre": "Synthwave",
    "name": "Neon Night Drive",
    "progression": [ "Am", "G", "F", "G" ],
    "description_jp": "80年代のシンセウェイヴを象徴する、シンプルながら疾走感と哀愁を併せ持つ、夜のハイウェイが似合う進行",
    "description_en": "Symbolizing 80s Synthwave, this simple yet driving progression evokes melancholy and speed on a neon-lit highway."
  },
  {
    "genre": "Ethnic",
    "name": "Sakura Japanese",
    "progression": [ "Am", "F", "E7", "Am" ],
    "description_jp": "「さくらさくら」などの日本古来の旋律や、演歌、和風ロックに通じる、情念と和の心を感じさせる進行",
    "description_en": "Evoking traditional Japanese melodies like 'Sakura Sakura,' this progression conveys deep passion and a distinctly Japanese spirit."
  },
  {
    "genre": "R&B",
    "name": "Mellow Chromatic Fall",
    "progression": [ "CM7", "Bm7", "Am7", "Ab7" ],
    "description_jp": "Cメジャーから半音ずつ階段を降りていく、ネオソウルやチルなヒップホップで愛される、甘くメロウな下降ライン",
    "description_en": "A sweet, mellow chromatic descent from C Major, loved in Neo-Soul and Chill Hip-Hop for its smooth, relaxing flow."
  },
  {
    "genre": "Cinematic",
    "name": "Epic Space Loop",
    "progression": [ "C", "Ab", "Bb", "C" ],
    "description_jp": "Cメジャーキーで同主短調のコード（Ab, Bb）を借用した、宇宙旅行や壮大な冒険の終わりを感じさせるエピックな循環",
    "description_en": "An epic cycle borrowing chords from the parallel minor (Ab, Bb), evoking space travel or the grand finale of an adventure."
  },

















  {
    "genre": "Future Bass",
    "name": "Crystal Lydian Flow",
    "progression": [ "C", "D", "Bm7", "Em7" ],
    "description_jp": "C始まりでリディアンの浮遊感を強調した、透明感のあるフューチャーベース向け進行",
    "description_en": "A bright Lydian-inspired loop starting on C, perfect for shimmering Future Bass textures."
  },
  {
    "genre": "Future Bass",
    "name": "Emotional Lift",
    "progression": [ "Am7", "Fmaj7", "C", "G" ],
    "description_jp": "王道のvi–IV–I–V。壮大なビルドアップやサビの高揚感に最適",
    "description_en": "A classic vi–IV–I–V pattern ideal for emotional builds and soaring drops."
  },
  {
    "genre": "Future Bass",
    "name": "Dream Bounce",
    "progression": [ "Cmaj7", "Em7", "Am7", "G6" ],
    "description_jp": "メジャー7と6thを多用し、柔らかくドリーミーな質感を演出する進行",
    "description_en": "Soft major 7ths and 6ths create a dreamy, bouncy Future Bass vibe."
  },
  {
    "genre": "Future Bass",
    "name": "Hyper Color Loop",
    "progression": [ "Am", "G", "C", "D" ],
    "description_jp": "アニソン寄りの明るいモード感を持つ、疾走系フューチャーポップにも合う進行",
    "description_en": "A bright, anime-influenced loop suitable for energetic Future Pop."
  },
  {
    "genre": "Future Bass",
    "name": "Floating Echo",
    "progression": [ "Cadd9", "G/B", "Am7", "Fmaj7" ],
    "description_jp": "アコースティック寄りの透明感を持ち、ピアノ主体のフューチャーベースに最適",
    "description_en": "A transparent, acoustic-friendly progression ideal for piano-driven Future Bass."
  },

  {
    "genre": "Ethnic",
    "name": "Desert Caravan",
    "progression": [ "Am", "G", "F", "E" ],
    "description_jp": "中東風のエキゾチックな雰囲気を持つ、旅情あふれる進行",
    "description_en": "An exotic Middle Eastern-flavored loop evoking desert journeys."
  },
  {
    "genre": "Ethnic",
    "name": "Nordic Mist",
    "progression": [ "C", "Dm", "G", "C" ],
    "description_jp": "北欧民謡のような素朴さと広がりを感じる進行",
    "description_en": "A simple, spacious progression reminiscent of Nordic folk melodies."
  },
  {
    "genre": "Ethnic",
    "name": "Tribal Dawn",
    "progression": [ "Am7", "Em", "G", "Am" ],
    "description_jp": "パーカッシブな民族音楽と相性が良い、自然なモーダル感を持つ進行",
    "description_en": "A modal loop that pairs well with percussive tribal rhythms."
  },
  {
    "genre": "Ethnic",
    "name": "Asian Breeze",
    "progression": [ "C", "Bb", "F", "G" ],
    "description_jp": "五音音階的な響きを活かし、アジア的な爽やかさを感じさせる進行",
    "description_en": "Pentatonic-friendly chords evoke a fresh, Asian-inspired atmosphere."
  },
  {
    "genre": "Ethnic",
    "name": "Ancient Ritual",
    "progression": [ "Am", "F", "Dm", "E7" ],
    "description_jp": "和風・中東風どちらにも寄せられる、儀式的で神秘的なムード",
    "description_en": "A ritualistic, mystical loop adaptable to both Japanese and Middle Eastern styles."
  },

  {
    "genre": "Bossa Nova",
    "name": "Sunset Bossa",
    "progression": [ "C6", "Am7", "Dm7", "G7" ],
    "description_jp": "王道のII-Vを含む、夕暮れの海辺に似合う柔らかなボサノバ",
    "description_en": "A classic II–V-infused Bossa Nova progression perfect for sunset moods."
  },
  {
    "genre": "Bossa Nova",
    "name": "Cafe Breeze",
    "progression": [ "CM7", "E7", "Am7", "D7" ],
    "description_jp": "セカンダリードミナントを活かした、都会的で洗練された雰囲気",
    "description_en": "A sophisticated urban Bossa using tasteful secondary dominants."
  },
  {
    "genre": "Bossa Nova",
    "name": "Smooth Samba Touch",
    "progression": [ "Cmaj9", "Bm7b5", "E7", "Am9" ],
    "description_jp": "ジャズ寄りのテンションを含む、滑らかで大人なサンバ風進行",
    "description_en": "A jazz-leaning, smooth samba progression with lush tensions."
  },
  {
    "genre": "Bossa Nova",
    "name": "Gentle Afternoon",
    "progression": [ "Am7", "D7", "Gmaj7", "Cmaj7" ],
    "description_jp": "循環するII-V-Iで、穏やかで心地よい午後の空気感を演出",
    "description_en": "A gentle II–V–I cycle creating a relaxed afternoon vibe."
  },
  {
    "genre": "Bossa Nova",
    "name": "Blue Coastline",
    "progression": [ "C6/9", "F#7", "Fmaj7", "E7" ],
    "description_jp": "裏コードを使いながらも軽やかに流れる、海辺のボサノバ",
    "description_en": "A breezy coastal Bossa using tasteful tritone substitutions."
  },

  {
    "genre": "J-Pop",
    "name": "Shining Intro",
    "progression": [ "C", "G/B", "Am7", "F", "G", "C" ],
    "description_jp": "王道のI→V/III→viで始まる、爽やかで前向きなJ-POPイントロ",
    "description_en": "A bright, uplifting J-Pop intro built on a classic I–V/III–vi motion."
  },
  {
    "genre": "J-Pop",
    "name": "Emotional Lift-Up",
    "progression": [ "Am", "F", "C", "G", "E7", "Am" ],
    "description_jp": "切なさと高揚感を両立する、アニソンにも多い感情的な進行",
    "description_en": "A bittersweet yet uplifting loop often heard in anime-style pop."
  },
  {
    "genre": "J-Pop",
    "name": "Sparkle Chorus",
    "progression": [ "C", "Fmaj7", "G", "Em7", "Am7", "F", "G", "C" ],
    "description_jp": "サビで一気に開ける、キラキラした王道J-POPのサビ構成",
    "description_en": "A sparkling, expansive chorus progression typical of modern J-Pop."
  },
  {
    "genre": "J-Pop",
    "name": "Tearful Bridge",
    "progression": [ "Am7", "G/B", "C", "D", "Fmaj7", "G", "Em7", "Am" ],
    "description_jp": "ブリッジで感情を最大化する、上行感の強い構成",
    "description_en": "An ascending, emotional bridge progression that heightens dramatic tension."
  },
  {
    "genre": "J-Pop",
    "name": "Bright Youth Loop",
    "progression": [ "C", "Em", "F", "G" ],
    "description_jp": "明るくストレートな4コード",
    "description_en": "A bright, straightforward four-chord loop perfect for youth-themed pop."
  },

  {
    "genre": "Dark",
    "name": "Shadow Ritual",
    "progression": [ "Am", "F", "G#", "E" ],
    "description_jp": "半音進行が不穏さを強調する、儀式的でダークなムード",
    "description_en": "Chromatic movement adds ritualistic darkness and tension."
  },
  {
    "genre": "Dark",
    "name": "Cursed Lament",
    "progression": [ "C", "Ebdim", "Fm", "G7" ],
    "description_jp": "減和音を含む不吉な響きで、ホラーや悲劇的シーンに最適",
    "description_en": "Diminished colors create a cursed, tragic atmosphere."
  },
  {
    "genre": "Dark",
    "name": "Nightfall Waltz",
    "progression": [ "Am", "C", "E7", "F", "E7" ],
    "description_jp": "ワルツ調で進む、古い洋館のような不気味な雰囲気",
    "description_en": "A waltz-like loop evoking eerie, old-mansion imagery."
  },
  {
    "genre": "Dark",
    "name": "Inferno Gate",
    "progression": [ "C", "Bb", "Ab", "G" ],
    "description_jp": "下降する半音階的ムードが地獄の門を思わせる重厚な進行",
    "description_en": "Descending chromatic tension evokes a heavy, infernal atmosphere."
  },
  {
    "genre": "Dark",
    "name": "Broken Sanctuary",
    "progression": [ "Am", "G", "F", "E7", "Ebdim7" ],
    "description_jp": "最後の減七で不安を残す、崩れた聖堂のようなダークファンタジー感",
    "description_en": "A dark fantasy feel with an unsettling diminished ending."
  },

  {
    "genre": "Synthwave",
    "name": "Retro Highway",
    "progression": [ "C", "G", "Am", "F" ],
    "description_jp": "80年代の王道4コードで、疾走感とノスタルジーを両立",
    "description_en": "Classic 80s four-chord nostalgia with a sense of motion."
  },
  {
    "genre": "Synthwave",
    "name": "Neon Pulse",
    "progression": [ "Am", "F", "C", "G" ],
    "description_jp": "哀愁と煌めきを併せ持つ、シンセパッドに合う進行",
    "description_en": "A melancholic yet glowing loop ideal for lush synth pads."
  },
  {
    "genre": "Synthwave",
    "name": "Cyber Dream",
    "progression": [ "Cmaj7", "Em7", "Fmaj7", "G" ],
    "description_jp": "メジャー7主体で、未来的でドリーミーな雰囲気を演出",
    "description_en": "Major 7ths create a dreamy, futuristic Synthwave texture."
  },
  {
    "genre": "Synthwave",
    "name": "Night Runner",
    "progression": [ "Am", "G", "Em", "F" ],
    "description_jp": "疾走感のあるランニングベースと相性抜群の進行",
    "description_en": "Pairs perfectly with running basslines for a night-drive feel."
  },
  {
    "genre": "Synthwave",
    "name": "Digital Sunset",
    "progression": [ "C", "Am", "F", "G" ],
    "description_jp": "夕焼けのような温かさとレトロ感を併せ持つ定番ループ",
    "description_en": "A warm, retro sunset loop with classic Synthwave charm."
  },






  {
    "genre": "Kawaii Future Bass",
    "name": "Candy Lydian Pop",
    "progression": [ "Cmaj7", "D", "Em7", "Gmaj7" ],
    "description_jp": "C始まりでリディアン感を出しつつ、キラキラした可愛い雰囲気を作る定番の浮遊系進行",
    "description_en": "A bright Lydian-flavored loop starting on C, perfect for sparkly kawaii textures."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Sweet Drop Prep",
    "progression": [ "Am7", "Fmaj7", "C", "G", "B7", "Em7" ],
    "description_jp": "Aマイナーから始まり、B7で一気に転調感を出してドロップ前のワクワクを演出",
    "description_en": "Starts in A minor, then jumps to B7 for a playful modulation leading into a cute drop."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Pastel Sky Loop",
    "progression": [ "Cadd9", "G/B", "Am7", "Fmaj7", "D", "G" ],
    "description_jp": "王道I→V/III→viから始まり、D→Gで明るいGメジャーへ転調するパステル系進行",
    "description_en": "Begins with a classic pop motion, then modulates to G major for a pastel-colored lift."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Magical Girl Bounce",
    "progression": [ "Am", "G", "F", "E7", "A", "D" ],
    "description_jp": "Amの切なさからE7で締める進行",
    "description_en": "Moves from emotional Am to a bright A→D modulation, giving a magical-girl sparkle."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Sugar Rush Harmony",
    "progression": [ "Cmaj7", "Em7", "A7", "Dmaj7" ],
    "description_jp": "Cメジャーから突然A7→Dmaj7へ飛ぶ、可愛くて驚きのある転調が特徴",
    "description_en": "A playful jump from C major into A7→Dmaj7 creates a sweet surprise modulation."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Dreamy Bubble Pop",
    "progression": [ "Am9", "Fmaj7", "G6", "Cmaj7", "E7", "Am7" ],
    "description_jp": "テンション多めでふわふわした質感。E7で一瞬の緊張を作り、Amへ戻る可愛い循環",
    "description_en": "Lush tensions create a dreamy feel, with E7 adding a cute moment of tension before returning to Am."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Rainbow Slide",
    "progression": [ "C", "Fmaj7", "G", "E7", "Amaj7", "B7", "Emaj7" ],
    "description_jp": "C→E7→Amaj7→Emaj7と滑り台のように転調していく、カラフルで楽しい進行",
    "description_en": "A colorful slide of modulations from C to E major, perfect for energetic kawaii drops."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Fluffy Heartbeat",
    "progression": [ "Am7", "Cmaj7", "D7", "Gmaj7", "Bm7", "Em7" ],
    "description_jp": "Amから始まり、D7でGメジャーへ転調。ふわふわした可愛い疾走感を持つ進行",
    "description_en": "Starts in Am, then modulates to G major via D7 for a fluffy, upbeat kawaii feel."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Kira Kira Step",
    "progression": [ "C", "E7", "Am7", "D7", "Gmaj7" ],
    "description_jp": "C→E7で一気に明るく跳ね、D7→Gで爽やかに転調するキラキラ系進行",
    "description_en": "A sparkling jump from C to E7, then a smooth D7→G modulation for a bright kawaii shine."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Cotton Candy Mod",
    "progression": [ "Am", "F", "C", "G", "Bb", "F", "C" ],
    "description_jp": "途中でBbを挟むことで一瞬ドリアン風の甘い転調感を作る、綿菓子のような柔らかい進行",
    "description_en": "A soft, cotton-candy-like loop using Bb to add a sweet modal twist."
  },



  {
    "genre": "Kawaii Future Bass",
    "name": "Happy Pop Chord",
    "progression": [ "Cmaj7", "G/B", "Am7", "Em7", "Fmaj7", "C/E", "Dm7", "G7" ],
    "description_jp": "王道のダイアトニックコード進行で、明るくハッピーな雰囲気を作る、定番のポジティブ系進行",
    "description_en": "A classic diatonic chord progression creating a bright and happy atmosphere, perfect for positive and uplifting tracks."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Twinkle Star Drop",
    "progression": [ "Cmaj7", "Fmaj7", "G", "Em7", "Am7", "Dm7", "G7", "Cmaj7" ],
    "description_jp": "きらめくような下降感があり、Kawaii Future Bassのドロップに最適な、明るく楽しい循環進行",
    "description_en": "A bright and joyful cyclical progression with a sparkling descending feel, ideal for Kawaii Future Bass drops."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Dreamy Cloud Progression",
    "progression": [ "Am9", "Gmaj7", "Fmaj7", "Cmaj7", "Dm7", "Em7", "Fmaj7", "Gsus4", "G" ],
    "description_jp": "テンションコードを多めに使い、浮遊感と夢見心地な雰囲気を醸し出す、幻想的な進行",
    "description_en": "A fantastical progression featuring rich tension chords, evoking a floating and dreamy atmosphere."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Bubbly Synth Melody",
    "progression": [ "C", "G/B", "Am", "G", "F", "C/E", "Dm", "G" ],
    "description_jp": "シンプルながらもポップで覚えやすい進行で、シンセメロディが映える弾むようなリズムが特徴",
    "description_en": "A simple yet catchy progression, characterized by a bouncy rhythm that highlights synth melodies, making it memorable and pop-friendly."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Magical Entrance Chord",
    "progression": [ "Am7", "Dm7", "G7", "Cmaj7", "Fmaj7", "Bdim7", "E7", "Am7" ],
    "description_jp": "Amから始まり、Bdim7で少しミステリアスな雰囲気からE7でAmに戻る、魔法のような展開が楽しい進行",
    "description_en": "A delightful progression that starts in Am, transitions through a mysterious Bdim7, and returns to Am via E7, creating a magical narrative."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Sweet Pastel Mod",
    "progression": [ "Cmaj7", "Fmaj7", "Gmaj7", "Am7", "Dm7", "G7", "Cmaj7", "C#dim7", "Dm7", "G7" ],
    "description_jp": "C#dim7を挟むことで、次のDm7への甘い転調を演出する、パステルカラーのような柔らかな変化が魅力",
    "description_en": "A charming progression that uses C#dim7 to create a sweet modulation to Dm7, featuring soft, pastel-like transitions."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Sparkle Glide Progression",
    "progression": [ "Am", "G", "C", "F", "Dm", "Em", "F", "G" ],
    "description_jp": "順次進行でスムーズにコードが移り変わり、きらめくような浮遊感を全体で表現する進行",
    "description_en": "A progression that smoothly transitions through chords with step-wise motion, expressing an overall sparkling and floating sensation."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Cute Bounce Cycle",
    "progression": [ "Cmaj7", "Bm7b5", "E7", "Am7", "Dm7", "G7", "Cmaj7" ],
    "description_jp": "Bm7b5からE7への進行で、少しジャジーで可愛い雰囲気を作る循環進行。予想外の響きがアクセント",
    "description_en": "A cyclical progression creating a slightly jazzy and cute vibe with the Bm7b5 to E7 movement. Unexpected harmonies add a delightful touch."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Starry Night Chord",
    "progression": [ "Am", "G", "Dm", "C", "F", "G", "C", "G/B" ],
    "description_jp": "Aマイナーを基調としつつ、FやGで明るさを加える星空のような広がりを感じさせる進行",
    "description_en": "A progression based in A minor, expanding with F and G to evoke the vastness of a starry night sky."
  },
  {
    "genre": "Kawaii Future Bass",
    "name": "Candy Drop Build-up",
    "progression": [ "Fmaj7", "Cmaj7", "G", "Am", "Fmaj7", "Cmaj7", "G", "G#dim7", "Am" ],
    "description_jp": "ドロップ前のビルドアップを意識し、G#dim7で期待感を高める、甘くてスリリングな進行",
    "description_en": "A sweet and thrilling progression designed for pre-drop build-up, using G#dim7 to heighten anticipation."
  },






  {
    "genre": "Neo-Soul",
    "name": "Midnight Bitter Resolve",
    "progression": [ "Cmaj9", "A7+5", "Dm9", "G7-9", "Cmaj7", "Fmaj9", "Bb7+9", "Ebmaj7", "Am9", "D7-5", "G7+5", "Cmaj9" ],
    "description_jp": "ネオソウルらしい滑らかな流れから後半で急にオルタードと#5が襲ってくる苦味のある進行",
    "description_en": "Smooth neo-soul flow that suddenly gets hit with altered and augmented tension in the second half"
  },
  {
    "genre": "Neo-Soul",
    "name": "Floating 9th Mirage",
    "progression": [ "Am9", "D9sus4", "G9", "C/E", "FM7+5", "Bm7b5", "E7b9", "Am69", "D7#9", "Gmaj9", "C69", "Am9" ],
    "description_jp": "9thとsusを多用してふわふわ浮遊感を出しつつ、最後はAマイナーに優しく着地",
    "description_en": "Heavy use of 9ths and sus4 for a dreamy floating feel, gently landing back on A minor"
  },
  {
    "genre": "Neo-Soul",
    "name": "Chromatic Spiral Descent",
    "progression": [ "Cmaj7", "C#dim7", "Dm9", "Eb7#5", "D7b9", "Dbmaj7", "Cmaj9", "B7+5", "Em9", "A7#9", "Dmaj7", "G9", "Cmaj7" ],
    "description_jp": "半音ずつ下降しながらテンションを積み重ね、最後にCへ華麗に解決するスパイラル",
    "description_en": "Chromatic descending spiral building tension, resolving dramatically back to C major"
  },
  {
    "genre": "Jazz",
    "name": "Augmented Mirror Loop",
    "progression": [ "CM7+5", "A7+5", "DmM7", "G7#5", "CM7+5", "F#7b5", "Bm7b5", "E7+5", "AmM7", "D7#5", "Gmaj7", "CM7+5" ],
    "description_jp": "+5とaugを鏡のように反復しながら、少しずつキーをずらして戻ってくる不思議なループ",
    "description_en": "Mirror-like repetition of +5/aug chords, subtly shifting tonality before circling back"
  },
  {
    "genre": "Jazz",
    "name": "Half-Whole Phantom Ride",
    "progression": [ "Am9", "D7+5", "G7b9", "Cmaj9", "F#7", "Bm7b5", "E7#9", "Am69", "D9sus4", "Gmaj9", "C69", "Am9" ],
    "description_jp": "ハーフホールディミニッシュ感が漂う、少しダークなライド進行",
    "description_en": "Dark ride featuring altered, b13 & #9 tensions with half-whole diminished flavor"
  },
  {
    "genre": "Neo-Soul",
    "name": "Quantum 9th Collapse",
    "progression": [ "Amaj9", "D9", "Gmaj9", "C#m7b5", "F#7+5", "Bm9", "E7b9", "Ab4.3", "Fmaj7", "B7#9", "Em9", "A9", "Dmaj9", "G#7+5", "C#m9", "F#7sus4", "Bmaj9" ],
    "description_jp": "Aメジャーから始まり量子的に転調を繰り返して最後は壮大に広がる進行",
    "description_en": "Starts in A major, quantum-like modulations unfolding into a grand, futuristic spread (quite adventurous)"
  },




  {
    "genre": "Modal",
    "mode": "Ionian",
    "name": "Bright Steps",
    "progression": [ "C", "G/B", "Am7", "F", "G", "C" ],
    "description_jp": "王道の明るさを持つアイオニアン進行",
    "description_en": "Classic bright Ionian movement in C major"
  },
  {
    "genre": "Modal",
    "mode": "Dorian",
    "name": "Soft Dorian Shade",
    "progression": [ "Dm7", "G", "C", "Am7", "Dm7" ],
    "description_jp": "Cメジャーに自然に馴染む柔らかなドリアンの色味",
    "description_en": "Gentle Dorian flavor that blends smoothly with C major"
  },
  {
    "genre": "Modal",
    "mode": "Lydian",
    "name": "Lydian Lift",
    "progression": [ "Cmaj7", "D", "Em7", "Fmaj7", "C" ],
    "description_jp": "Cリディアンの浮遊感を活かした明るい進行",
    "description_en": "Bright, floating C Lydian-inspired progression"
  },
  {
    "genre": "Modal",
    "mode": "Mixolydian",
    "name": "Mixolydian Drive",
    "progression": [ "G", "F", "C", "G", "Bb", "F", "C" ],
    "description_jp": "Gミクソリディアンのブルージーな推進力をCに着地させる",
    "description_en": "Bluesy G Mixolydian drive resolving back to C"
  },
  {
    "genre": "Modal",
    "mode": "Aeolian",
    "name": "Aeolian Flow",
    "progression": [ "Am", "G", "F", "C", "Em", "F", "G", "C" ],
    "description_jp": "Aエオリアンの哀愁をCメジャーに溶かし込んだ進行",
    "description_en": "A Aeolian melancholy blended into a C major context"
  },
  {
    "genre": "Modal",
    "mode": "Locrian",
    "name": "Locrian Spark",
    "progression": [ "Bdim7", "C", "Em", "F", "G", "C" ],
    "description_jp": "Bロクリアンの不安定さをアクセントとして使う進行",
    "description_en": "A touch of B Locrian instability used as a color accent"
  },





  {
    "genre": "Chill",
    "name": "Soft Breeze",
    "progression": [ "Cmaj7", "G6", "Am7", "Fmaj7" ],
    "description_jp": "柔らかい風のように流れるチル進行",
    "description_en": "A gentle breeze-like chill progression"
  },
  {
    "genre": "Chill",
    "name": "Late Night Glow",
    "progression": [ "Cmaj7", "Em7", "Fmaj7", "G9" ],
    "description_jp": "深夜の街灯のような落ち着いた雰囲気",
    "description_en": "A calm late-night glow in C major"
  },
  {
    "genre": "Chill",
    "name": "Floating Steps",
    "progression": [ "Cadd9", "Am7", "Fmaj7", "Gsus4" ],
    "description_jp": "浮遊感のあるチルなステップ進行",
    "description_en": "A floating, airy chill movement"
  },
  {
    "genre": "Chill",
    "name": "Warm Horizon",
    "progression": [ "Cmaj7", "Bm7b5", "Em7", "Fmaj7" ],
    "description_jp": "暖かい地平線を思わせる穏やかな進行",
    "description_en": "A warm horizon with mellow colors"
  },
  {
    "genre": "Chill",
    "name": "Calm Drift",
    "progression": [ "C6", "G/B", "Am9", "Fmaj7" ],
    "description_jp": "ゆったりと漂うようなチル感",
    "description_en": "A drifting, relaxed chill vibe"
  },
  {
    "genre": "Chill",
    "name": "Evening Lofi",
    "progression": [ "Cmaj7", "E7#9", "Am7", "Fmaj7" ],
    "description_jp": "ローファイ感のある夕暮れチル進行",
    "description_en": "A lo-fi flavored evening progression"
  },
  {
    "genre": "Chill",
    "name": "Ocean Rest",
    "progression": [ "Cadd9", "G6", "Em7", "Fmaj7" ],
    "description_jp": "海辺で休むような穏やかな波の進行",
    "description_en": "A calm ocean-side chill flow"
  },
  {
    "genre": "Chill",
    "name": "Soft Pulse",
    "progression": [ "Cmaj7", "Am7", "Dm9", "G7sus4" ],
    "description_jp": "柔らかい脈動を感じるチルな循環",
    "description_en": "A soft pulsing chill cycle"
  },
  {
    "genre": "Chill",
    "name": "Cloud Walk",
    "progression": [ "Cmaj7", "Fmaj7", "Em7", "Am7" ],
    "description_jp": "雲の上を歩くような軽やかさ",
    "description_en": "A light, cloud-walking chill progression"
  },
  {
    "genre": "Chill",
    "name": "Quiet Echo",
    "progression": [ "Cmaj7", "Gsus2", "Am7", "F6" ],
    "description_jp": "静かな余韻が残るチルな響き",
    "description_en": "A quiet echo with mellow chill tones"
  },



  {
    "genre": "Dreamy",
    "name": "Moonlit Air",
    "progression": [ "Cmaj7", "Am9", "Fmaj7", "G6" ],
    "description_jp": "月明かりのように柔らかく広がる進行",
    "description_en": "A soft moonlit expansion in C major"
  },
  {
    "genre": "Dreamy",
    "name": "Crystal Drift",
    "progression": [ "Cadd9", "Em7", "Fmaj7", "Gsus2" ],
    "description_jp": "透明感のある漂うようなドリーミー感",
    "description_en": "A drifting crystalline dream texture"
  },
  {
    "genre": "Dreamy",
    "name": "Starlight Steps",
    "progression": [ "Cmaj7", "G/B", "Am7", "Fmaj7" ],
    "description_jp": "星明かりの階段を上るような幻想的な流れ",
    "description_en": "A starlit ascending dreamy movement"
  },
  {
    "genre": "Dreamy",
    "name": "Dream Float",
    "progression": [ "C6", "Am7", "Dm9", "G9" ],
    "description_jp": "夢の中をふわりと漂うような進行",
    "description_en": "A floating dreamlike harmonic flow"
  },
  {
    "genre": "Dreamy",
    "name": "Pastel Waves",
    "progression": [ "Cmaj7", "Fmaj7", "Em7", "Am9" ],
    "description_jp": "パステルカラーの波が揺れるような柔らかさ",
    "description_en": "Soft pastel-colored harmonic waves"
  },
  {
    "genre": "Dreamy",
    "name": "Light Bloom",
    "progression": [ "Cadd9", "Fmaj7", "G6", "Em7" ],
    "description_jp": "光がゆっくりと咲くような幻想的な進行",
    "description_en": "A blooming light-filled dreamy sequence"
  },
  {
    "genre": "Dreamy",
    "name": "Sleepy Horizon",
    "progression": [ "Cmaj7", "E7sus4", "Am7", "Fmaj7" ],
    "description_jp": "眠りに落ちる直前の曖昧な地平線",
    "description_en": "A hazy horizon before drifting to sleep"
  },
  {
    "genre": "Dreamy",
    "name": "Cloud Echo",
    "progression": [ "Cmaj7", "Gsus2", "Am9", "Fmaj7" ],
    "description_jp": "雲の中で反響するような柔らかい響き",
    "description_en": "Soft echoes within a cloudlike texture"
  },
  {
    "genre": "Dreamy",
    "name": "Aurora Flow",
    "progression": [ "Cmaj7", "D6", "Em7", "Fmaj7" ],
    "description_jp": "オーロラのように揺らめく幻想的な色彩",
    "description_en": "An aurora-like shimmering dream flow"
  },
  {
    "genre": "Dreamy",
    "name": "Feather Glide",
    "progression": [ "Cadd9", "Am7", "F6", "Gsus4" ],
    "description_jp": "羽が滑空するような軽やかで夢見心地の進行",
    "description_en": "A featherlike gliding dreamy progression"
  },




  {
    "name": "Color Shift Spiral",
    "genre": "Modulation",
    "start_key": "C major",
    "progression": [ "C", "G/B", "Am", "E7", "A", "F#m7", "D7", "G" ],
    "description_jp": "Cから始まりAメジャーを経由してGへ着地する多段転調",
    "description_en": "Starts in C, pivots through A major, lands in G"
  },
  {
    "name": "Dream Warp Route",
    "start_key": "A minor",
    "genre": "Modulation",
    "progression": [ "Am", "F", "G", "B7", "Em", "Cmaj7", "Abmaj7", "G" ],
    "description_jp": "AマイナーからEマイナー、さらにA♭へ飛ぶ幻想的な転調",
    "description_en": "A minor to E minor with a surreal jump to Ab major"
  },
  {
    "name": "Chromatic Bridge Walk",
    "start_key": "C major",
    "genre": "Modulation",
    "progression": [ "Cmaj7", "E7", "Amaj7", "C7", "Fmaj7", "Ab7", "Dbmaj7", "G7" ],
    "description_jp": "クロマチックなドミナントで次々と色を変える進行",
    "description_en": "Chromatic dominant chain shifting colors rapidly"
  },
  {
    "name": "Parallel Universe Loop",
    "start_key": "A minor",
    "genre": "Modulation",
    "progression": [ "Am", "A", "Dmaj7", "F#m7", "Bm7", "E7", "Gmaj7", "C" ],
    "description_jp": "AマイナーとAメジャーを行き来しながらCへ帰還",
    "description_en": "Moves between A minor and A major before resolving to C"
  },
  {
    "name": "Luminous Gate",
    "start_key": "C major",
    "genre": "Modulation",
    "progression": [ "C", "F", "G", "Bb", "Eb", "Abmaj7", "F7", "C" ],
    "description_jp": "C→B♭→E♭→A♭と四度圏を巡ってCへ戻る壮大な転調",
    "description_en": "Circle-of-fourths journey from C to Ab and back"
  },
  {
    "name": "Fading Mirage",
    "start_key": "A minor",
    "genre": "Modulation",
    "progression": [ "Am", "G", "F", "E7", "Amaj7", "C#7", "F#m", "Dmaj7" ],
    "description_jp": "AマイナーからAメジャーへ、さらにF#マイナーへ滑り込む進行",
    "description_en": "Slides from A minor to A major then into F# minor"
  },
  {
    "name": "Neon Shift Drive",
    "start_key": "C major",
    "genre": "Modulation",
    "progression": [ "C", "Em", "G", "B7", "E", "G#7", "C#m7", "F#7" ],
    "description_jp": "CからEメジャー、C#マイナー、F#へと駆け抜ける近未来的転調",
    "description_en": "Runs from C to E major, C# minor, then F#"
  },
  {
    "name": "Twilight Modulation Path",
    "start_key": "A minor",
    "genre": "Modulation",
    "progression": [ "Am", "C", "E7", "G#", "C#m", "Amaj7", "Fmaj7", "G" ],
    "description_jp": "AマイナーからC#マイナーへ飛び、Fを経てGへ着地",
    "description_en": "A minor jumps to C# minor then resolves through F to G"
  },
  {
    "name": "Harmonic Maze",
    "start_key": "C major",
    "genre": "Modulation",
    "progression": [ "Cmaj7", "A7", "Dmaj7", "F#7", "Bm7", "Eb7", "Abmaj7", "G7" ],
    "description_jp": "セカンダリードミナントと遠隔調を組み合わせた迷宮的転調",
    "description_en": "A maze of secondary dominants and distant keys"
  },
  {
    "name": "Astral Drift",
    "start_key": "A minor",
    "genre": "Modulation",
    "progression": [ "Am", "Fmaj7", "E7", "Gmaj7", "Bbmaj7", "Db7", "Gbmaj7", "C" ],
    "description_jp": "Aマイナーから銀河のように遠隔調を巡りCへ帰還",
    "description_en": "A minor drifts through distant keys before returning to C"
  }
  


]