{
  "prompt": "Genre: Mandopop Ballad; BPM: 128; Key: A major; Rhythm: Slow half-time feel. Simple drum machine beat (kick on 1, snare on 3) with 8th-note hi-hats. Clean synth bass plays root notes on downbeats.; Instruments: Digital Piano (bright, arpeggios/chords), Lush Synth Strings/Pad (wide, sustained chords), Clean Electric Guitar (arpeggiated, with delay), Drum Machine (standard kit, dry snare), Synth Bass (round, clean); Vocals: Female, clear youthful timbre, earnest delivery with some breathiness, prominent reverb, centered in the mix.; Mood: Melancholic, sentimental, heartbroken, earnest.; Production: Wide stereo image dominated by pads and vocal reverb. Vocals are upfront and clear. A polished but slightly dated 2000s sound. Aims for a large, atmospheric space.; Structure: Intro, Verse, Pre-Chorus, Chorus, Bridge, Chorus, Outro; Language: Mandarin; Highlight: The lush, wide synth string pad that defines the song's emotional atmosphere.",
  "lyrics": "[intro]\n(Chords: F#m - D - A - E)\n(Mix: Spacious, reverb-heavy; Piano and guitar upfront)\n(Inst: Clean electric guitar plays a simple, memorable melodic motif over bright piano arpeggios and a soft synth pad foundation.)\n(Vocal-Perf: No vocals)\n\n[verse]\n(Chords: F#m - D - A - E)\n(Mix: Intimate; Vocal and piano focused)\n(Inst: Arrangement thins out to just piano arpeggios and a subtle bass line. No drums.)\n(Vocal-Perf: Soft, breathy, and close-mic'd; mezzo-piano dynamic; conversational rhythm)\n一个人的房间 收拾好几天 还是空空如也\n像是断了的弦 拨不出从前 我们的时间\n\n[pre-chorus]\n(Chords: D - E - C#m - F#m, D - E - A)\n(Transition: Simple drum machine beat enters with a soft kick and snare, lifting the energy.)\n(Inst: Piano shifts to simple block chords, bass becomes more prominent.)\n(Vocal-Perf: Builds slightly in volume and intensity; more sustained notes, leading into the chorus)\n舍不得说再见 却又无力再向前\n也许不该出现 让你为难了这些年\n\n[chorus]\n(Chords: F#m - D - A - E)\n(Mix: Expands to full width; lush and atmospheric)\n(Inst: The highlight lush synth string pad enters, creating a wide, emotional backdrop. Electric guitar re-enters with subtle arpeggios. Drum beat is steady and supportive.)\n(Vocal-Perf: Stronger, more emotional delivery; mezzo-forte; soaring melody in the upper register)\n多希望你的爱能分我一点 让我至少能撑到明天\n为你改变 失去自我也不埋怨\n多希望你的爱能分我一点 哪怕是短暂的敷衍\n我在沦陷 心甘情愿\n\n[bridge]\n(Chords: D - E - C#m - F#m, D - E - A)\n(Transition: A brief pause in the drums before the beat re-enters, creating dynamic contrast.)\n(Mix: Instruments pull back slightly to refocus on the vocal question.)\n(Inst: Piano and bass drive the harmony with a slightly different rhythmic feel.)\n(Vocal-Perf: More direct and questioning tone; a moment of vulnerability before the final emotional peak.)\n是我太天真 还是我太傻\n为你付出那么多你无动于衷啊\n\n[chorus]\n(Chords: F#m - D - A - E)\n(Mix: The fullest and widest point of the song; climax)\n(Inst: All elements are present. Synth strings are at their most prominent. Subtle vocal harmonies or doubles are added for thickness.)\n(Vocal-Perf: Most powerful and emotional delivery; ad-libs can be added towards the end; full forte dynamic.)\n多希望你的爱能分我一点 让我至少能撑到明天\n为你改变 失去自我也不埋怨\n多希望你的爱能分我一点 哪怕是短暂的敷衍\n我在沦陷 心甘情愿\n\n[outro]\n(Chords: F#m - D - A - E)\n(Transition: Music begins a slow fade out.)\n(Inst: Drums and bass drop out, leaving the intro's electric guitar motif playing over the piano arpeggios and fading synth pad.)\n(Vocal-Perf: A final, distant, heavily-reverberated ad-lib of the hook phrase.)\n心甘情愿",
  "song_id": "01_晴天_20260417",
  "_meta": {
    "provider": "google",
    "model": "gemini-2.5-pro",
    "usage": {
      "prompt_tokens": 8358,
      "completion_tokens": 1090,
      "total_tokens": 12887
    },
    "generated_at": "2026-04-17T22:22:22.192219+08:00"
  }
}