{
  "prompt": "Genre: Chinese-style Pop Ballad, modern drum kit with prominent dizi melody; BPM: 144; Key: F# minor (pentatonic focus); Rhythm: Driving 4/4 pop-rock beat with steady kick on 1/3 and snare on 2/4; Instruments: Layer 1 (Classical): Breathy, high-register Dizi playing lead melody and counterpoint. Layer 2 (Modern): Full acoustic drum kit, clean sub-bass. Layer 3 (Harmonic): Grand piano chords, full orchestral string section for swells. Vocals: Clear female ancient-style: clear female soprano, ancient-style tone, precise diction, emotionally restrained poetic delivery; Mood: Tragic fate of reincarnated lovers, imagery of a steadfast stone tablet and the unbreaking red thread of fate; Production: Vocals and Dizi are upfront and clear with hall reverb; powerful drums and wide strings sit behind them to create an epic soundscape; Highlight: The contrast between the high-energy, modern pop drum groove and the ethereal, classical Dizi flute melody.",
  "lyrics": "[intro]\n(Chords: F#m - D - A - E) (Mix: Piano centered, Dizi slightly panned, spacious reverb) (Inst: Grand piano arpeggios, entry of breathy Dizi playing main pentatonic hook) (Motif-Anatomy: Dizi plays a descending pentatonic phrase with a slight breathy attack on the first note) (Phrase-Structure: Symmetrical 4-bar melodic statement)\n\n[verse]\n(Chords: F#m - D - A - E) (Mix: Vocal centered, dry; Dizi drops out, piano/strings provide quiet bed) (Vocal-Perf: Low-register, breathy, narrative tone; every syllable enunciated clearly; poetic recitation) (Contour-&-Range: Narrow melodic range, stays within a fifth) (Transition: Soft string pad enters at the end)\n光阴如梭\n一梭才去一梭痴\n情丝百转\n丝丝缠乱犹不知\n织一段锦绣纹饰\n并连理双枝\n难寄托这相思\n\n[chorus]\n(Chords: D - A - E - F#m) (Mix: Full dynamic range; vocal soars, wide orchestral strings, powerful drums) (Inst: Driving acoustic drum kit enters, full string section swells, Dizi plays counter-melody) (Vocal-Perf: Upward leap into powerful chest-mix voice; sustained notes at end of phrases with natural vibrato) (Contour-&-Range: Wide range, leaps up a fifth on the tonic)\n兜兜转转\n朝花夕拾却已迟\n寻寻觅觅\n醉生梦死又一世\n还记得前生盟誓\n欲言竟无词\n恨对面不相识\n\n[interlude]\n(Chords: D - A - E - F#m) (Mix: Dizi takes center stage, drums maintain energy) (Inst: Dizi solo, elaborating on the chorus melody; strings and rhythm section provide backing) (Motif-Anatomy: Dizi uses faster runs and ornamentation based on main hook)\n\n[verse]\n(Chords: F#m - D - A - E) (Mix: Dynamics drop back down, similar to first verse) (Vocal-Perf: Consistent narrative delivery, slightly more emotional intensity than first verse) (Transition: Drums simplify to just kick/hats, strings become softer pads)\n兜兜转转\n朝花夕拾却已迟\n寻寻觅觅\n醉生梦死又一世\n还记得前生盟誓\n欲言竟无词\n恨对面不相识\n\n[chorus]\n(Chords: D - A - E - F#m) (Mix: Returns to full epic soundscape, added vocal harmonies) (Inst: All elements return, layered backing vocals add texture) (Vocal-Perf: Maximum emotional delivery, strong and clear high notes)\n我愿化作望断天涯\n那一方青石\n篆刻心头是你的名字\n轮回彩蝶化茧自缚\n织就春蚕丝\n剪不断共缠绵\n生生世世\n\n[bridge]\n(Chords: D - E - C#m - F#m) (Mix: Dynamic builds, drums use tom-fills) (Inst: Piano plays syncopated chords, strings build tension with rising lines) (Vocal-Perf: Rhythmic phrasing, builds from softer tone to full power leading into final chorus) (Phrase-Structure: Repetitive melodic phrase building tension)\n我愿化作望断天涯\n那一方青石\n篆刻心头是你的名字\n\n[outro]\n(Chords: D - A - E - F#m) (Mix: Gradual fade out, reverb tails linger) (Inst: Dizi plays final melodic statement, piano arpeggios return, drums simplify and fade) (Vocal-Perf: Ad-libs repeating key phrases, fades with reverb) (Sound-Design: Final breathy note of the Dizi hangs in space)\n剪不断共缠绵\n生生世世\n",
  "song_id": "01_九张机_20260419",
  "_meta": {
    "provider": "google",
    "model": "gemini-2.5-pro",
    "usage": {
      "prompt_tokens": 11353,
      "completion_tokens": 1195,
      "total_tokens": 15284
    },
    "generated_at": "2026-04-19T13:24:28.243754+08:00"
  },
  "_prompt_compressed": {
    "from": 1055,
    "to": 954
  }
}