{
  "prompt": "Genre: J-Pop / R&B / Soul; BPM: 138; Key: G# minor; Rhythm: Mid-tempo R&B groove with a live drum feel, slightly swung 16th-note hi-hats, and a melodic, syncopated bassline; Instruments: Warm electric piano (Rhodes-style), grand piano, clean electric bass, live-sounding drum kit, lush string section for pads, and a prominent gospel-style vocal choir; Vocals: Male tenor with a smooth, versatile delivery, using chest voice, light falsetto, and intricate R&B runs; Mood: Uplifting, warm, heartfelt, and slightly bittersweet; Production: Clean, modern, and spacious mix with wide stereo imaging from strings and backing vocals, natural reverb, and polished organic sound; Structure: Intro - Verse - Chorus - Verse - Chorus - Bridge - Outro; Language: Japanese; Highlight: the lush, gospel-inspired multi-layered backing vocals in the chorus",
  "lyrics": "[intro]\n(Chords: Bmaj7 - Emaj7 - G#m7 - F#7sus4)\n(Inst: Warm electric piano chords; Gentle vocal humming)\n(Vocal-Perf: Soft, breathy, wordless melody)\n(Mix: Intimate, centered, reverb tail)\n\n[verse 1]\n(Chords: G#m7 - C#m7 - F#7 - Bmaj7 - Emaj7 - C#m7 - D#m7 - G#m7)\n(Vocal-Perf: Gentle chest voice; Conversational rhythm)\n(Inst: Electric piano leads; Bass enters with a smooth, syncopated line; Simple kick/snare pattern begins)\n(Melody-Contour: Mostly stepwise with small leaps)\n(Mix: Vocals upfront and dry)\n鳥は春を告げて\n私は恋をして\n素敵な温度だけ\n触れさせて この肌で\n(Transition: Light cymbal swell)\n雲は夏を帯びて\n私は目を閉じて\n綺麗な時間だけ\n追いかけて 尽きるまで\n\n[chorus]\n(Chords: Bmaj7 - Emaj7 - G#m7 - F#7 - Bmaj7 - Emaj7 - G#m7 - F#7 - Bmaj7)\n(Vocal-Perf: Stronger chest voice; Layered harmonies enter)\n(Inst: Full drum kit enters; Lush string pads swell underneath; Piano adds rhythmic comping)\n(Structure: Energy lift; Dynamic peak of the first half)\n(Mix: Wide stereo field; Prominent gospel-style backing vocals creating a choir effect)\n花は咲いては枯れ\nあなたに心奪われ\nそれでも守り続けたくて\n私のガーデン 果てるまで\n人は出会い別れ\n失くしてはまた手に入れ\nそれでも守り続けたくて\n私のガーデン 果てるまで\n\n[verse 2]\n(Chords: G#m7 - C#m7 - F#7 - Bmaj7 - Emaj7 - C#m7 - D#m7 - G#m7)\n(Vocal-Perf: Return to softer, more intimate delivery)\n(Inst: Strings fade out; Groove simplifies to bass, drums, and electric piano)\n(Structure: Dynamic drop to create contrast with chorus)\n(Mix: Narrows slightly, focus returns to lead vocal)\n夜が秋を呼んで\n私は旅に出て\n素敵な出会いだけ\n待っていて その日まで\n(Transition: Bass fill)\nだから冬よおいで\n私を抱きしめて\nその手の温もりで\n生きさせて 溶けるまで\n\n[chorus]\n(Chords: Bmaj7 - Emaj7 - G#m7 - F#7 - Bmaj7 - Emaj7 - G#m7 - F#7 - Bmaj7)\n(Vocal-Perf: More impassioned than first chorus; Ad-libs in gaps)\n(Inst: Strings return with more movement; Grand piano doubles chords, adding brightness)\n(Mix: Widest point yet; Backing vocal layers are thicker and more complex)\n(Structure: Builds energy towards the bridge)\n花は咲いては枯れ\nあなたに心奪われ\nそれでも守り続けたくて\n私のガーデン 果てるまで\n人は出会い別れ\n失くしてはまた手に入れ\nそれでも守り続けたくて\n私のガーデン 果てるまで\n\n[bridge]\n(Chords: Emaj7 - D#m7 - C#m7 - G#m7 - Emaj7 - F#7 - Bmaj7 - B7 - Emaj7 - F#7)\n(Vocal-Perf: Starts reflective, builds to a powerful, soaring belt and falsetto scatting)\n(Inst: Instruments build in intensity; Drums become more active with fills)\n(Structure: Emotional and dynamic climax of the song)\n(Mix: All elements pushed forward; Reverb becomes more pronounced for dramatic effect)\n季節に身を置いて\n流れに身を任せ\nなるようになるだけ\n受け入れて そのままで\n流した涙だけ\nふりまいた愛だけ\n豊かになる庭で\n掴んだ手 解き放て 空の果て\n\n[outro]\n(Chords: Bmaj7 - Emaj7 - G#m7 - F#7sus4 - Bmaj7)\n(Vocal-Perf: Emotional, improvisational ad-libs and runs; Fading out)\n(Inst: Full band plays final chorus progression then fades, leaving only electric piano)\n(Structure: Gradual decrescendo; Fade out)\n(Mix: Reverb tails linger as instruments fade)\n(Sound-Design: Final warm piano chord rings out)",
  "song_id": "01_ガーデン_20260412",
  "_meta": {
    "provider": "google",
    "model": "gemini-2.5-pro",
    "usage": {
      "prompt_tokens": 9953,
      "completion_tokens": 1308,
      "total_tokens": 14092
    },
    "generated_at": "2026-04-12T23:00:54.305075+08:00"
  }
}