{
  "prompt": "Genre: City Pop / AOR; BPM: 108; Key: F Major; Rhythm: Mid-tempo backbeat drum groove with 8th-note hi-hats. Melodic, syncopated electric bassline. Syncopated electric piano chords.; Instruments: Rhodes electric piano (lush chords), clean electric guitar (funky stabs), melodic electric bass (warm tone), acoustic drums (tight sound), saxophone (smooth solo), orchestral strings (pads and swells).; Vocals: Female, clear and smooth mezzo-soprano voice with expressive, controlled delivery. Backing vocals provide lush harmonies.; Mood: Nostalgic, melancholic, sophisticated, late-night urban.; Production: Polished 80s studio sound, wide stereo mix, plate reverb on vocals and snare, clean and balanced.; Structure: Intro, Verse, Chorus, Verse, Chorus, Interlude, Outro; Language: Chinese; Highlight: The catchy English hook \"Stay with me\" in the chorus.",
  "lyrics": "[intro]\n(Chords: Fmaj7 - Ebmaj7 - Dm7 - G7)\n(Vocal-Perf: Ethereal, layered backing vocals; gentle delivery)\n(Mix: Wide stereo field; Vocals drenched in reverb)\nTo you…yes my love to you\nyes my love to you you…to you\n\n[verse]\n(Chords: Dm7 - G7 - Cmaj7 - Fmaj7 - Bbm7 - Eb7 - Am7 - D7)\n(Vocal-Perf: Conversational, rhythmic phrasing; chest voice; mezzo-piano)\n(Inst: Rhodes piano provides harmonic bed; Bass plays active, melodic line; Drums enter with a steady backbeat)\n私は私 貴方は貴方と\n昨夜言ってたそんな気もするわ\nグレイのジャケットに\n見覚えがあるコーヒーのしみ\n相変らずなのね\nショーウィンドウに二人映れば\n\n[chorus]\n(Chords: Dm7 - Gm7 - C7 - Fmaj7 - A7)\n(Vocal-Perf: Stronger, more melodic delivery; mezzo-forte; soaring on the hook)\n(Inst: Lush strings and brass stabs enter, adding drama and fullness)\n(Mix: Vocals upfront; Wider mix; Increased energy)\n(Melody-Harmony: Strong resolution on the hook)\nstay with me…真夜中のドアをたたき\n帰らないでと泣いた\nあの季節が 今 目の前\nstay with me…口ぐせを言いながら\n二人の瞬間を抱いて\nまだ忘れず 大事にしていた\n\n[verse]\n(Transition: Smooth, energy drops back to verse level)\n(Chords: Dm7 - G7 - Cmaj7 - Fmaj7 - Bbm7 - Eb7 - Am7 - D7)\n(Vocal-Perf: Similar to first verse, slightly more emotional nuance)\n(Inst: Clean guitar adds subtle fills and rhythmic accents)\n恋と愛とは違うものだよと\n昨夜言われたそんな気もするわ\n二度目の冬が来て\n離れていった貴方の心\nふり返ればいつも\nそこに貴方を感じていたの\n\n[chorus]\n(Chords: Dm7 - Gm7 - C7 - Fmaj7 - A7)\n(Vocal-Perf: Full power, sustained notes; layered backing vocals are more prominent)\n(Inst: Strings and brass play more sustained lines, building intensity)\n(Mix: Maximum width and dynamic energy)\nstay with me…真夜中のドアをたたき\n心に穴があいた\nあの季節が 今 目の前\nstay with me…淋しさまぎらわして\n置いたレコードの針\n同じメロディ繰り返していた……\n\n[interlude]\n(Transition: Full band hit leads into the solo section)\n(Chords: Dm7 - Gm7 - C7 - Fmaj7)\n(Inst: Expressive and melodic saxophone solo takes the lead; Rhythm section provides tight support)\n(Sound-Design: Saxophone has a warm tone with a touch of reverb)\n\n[outro]\n(Chords: Dm7 - Gm7 - C7 - Fmaj7)\n(Structure: Fade out)\n(Vocal-Perf: Ad-lib vocal phrases, repeating the hook softly)\n(Inst: Saxophone continues to play melodic fills as the track fades)\nstay with me…真夜中のドアをたたき\n帰らないでと泣いた\nあの季節が 今 目の前\nstay with me…口ぐせを言いながら\n二人の瞬間を抱いて\nまだ忘れず 暖めてた",
  "song_id": "01_真夜中のドア〜stay with me (シングルver.)_20260418",
  "_meta": {
    "provider": "google",
    "model": "gemini-2.5-pro",
    "usage": {
      "prompt_tokens": 11430,
      "completion_tokens": 1058,
      "total_tokens": 14752
    },
    "generated_at": "2026-04-18T13:22:14.004055+08:00"
  }
}