{
  "prompt": "Genre: Chinese-style Pop Ballad, Erhu-led melody over a modern drum groove; BPM: 69; Key: A minor (pentatonic); Rhythm: Pop Ballad Fusion: Slow, powerful acoustic drum groove with a heavy snare on the backbeat, creating a dramatic, marching feel.; Instruments: Erhu (expressive, weeping lead melody); Modern acoustic drum kit, sub-bass; Orchestral strings, piano chords for cinematic depth.; Vocals: Male tenor, clear and powerful chest voice, emotionally charged delivery, precise diction, with a heroic and sorrowful tone.; Mood: Classical Chinese imagery of a warrior's farewell (sword, wine) and the emotional archetype of tragic fate and loyal devotion.; Production: High-Fidelity, Pristine Radio-Ready Mix with expensive analogue warmth and silky smooth high-end; Epic, cinematic mix; vocals and erhu upfront with large hall reverb; Highlight: the soaring, emotive male vocal duetting with an equally expressive and melancholic erhu melody in the epic chorus.",
  "lyrics": "[intro]\n(Chords: Am - G - C - F)\n(Inst: Solo Erhu enters with main melodic theme, full of slides and vibrato)\n(Mix: Erhu centered and upfront, atmospheric string pads swell in background)\n(Motif-Anatomy: Descending pentatonic phrase with expressive grace notes and a long, sustained final note)\n(Phrase-Structure: Free-rhythm, establishing a melancholic and epic mood)\n\n[verse]\n(Chords: Am - G - C - G)\n(Transition: Erhu fades slightly, piano arpeggios enter)\n(Vocal-Perf: Restrained, narrative chest voice; Clear, poetic diction; Emotionally contained)\n(Inst: Sparse accompaniment, piano and subtle bassline; Soft kick drum enters on downbeats)\n(Contour-&-Range: Narrow melodic range, low in the vocal register, conversational feel)\n剑煮酒无味\n饮一杯为谁\n你为我送别\n你为我送别\n\n[chorus]\n(Chords: Am - F - C - G)\n(Transition: Full drum kit and orchestral strings enter with power)\n(Vocal-Perf: Soaring, powerful chest voice; Emotionally unleashed; Sustained high notes with natural vibrato)\n(Inst: Erhu plays an active counter-melody against the vocal; Drums drive a heavy backbeat)\n(Contour-&-Range: Melodic leap upwards of a fifth into the high register, emotional peak of the song)\n你是英雄就注定无泪无悔\n这笑有多危险 是穿肠毒药\n这泪有多么美 只有你知道\n这心没有你活着可笑\n\n[interlude]\n(Chords: Am - F - C - G)\n(Sound-Design: Vocal reverb tail lingers into the section)\n(Inst: Expressive Erhu solo, re-stating and ornamenting the chorus melody over the full band)\n(Mix: Erhu takes the spotlight, cinematic strings provide an epic backdrop)\n\n[verse]\n(Chords: Am - G - C - G)\n(Transition: Dynamics drop, but drums maintain a steady groove)\n(Vocal-Perf: More intense and urgent delivery than first verse; builds tension towards the final chorus)\n(Inst: Piano chords are more pronounced, bassline is more active)\n胭脂香味\n能爱不能给\n天有多长\n地有多远\n\n[chorus]\n(Chords: Am - F - C - G)\n(Transition: Explosive entry with cymbal crash)\n(Vocal-Perf: Maximum emotional intensity; voice has a slight, powerful grit on the high notes)\n(Inst: Orchestral strings are at their fullest volume, Erhu soars above everything)\n(Mix: All elements at full power for a climactic feel)\n你是英雄就注定无泪无悔\n这笑有多危险 是穿肠毒药\n这泪有多么美 只有你知道\n这心没有你活着可笑\n\n[bridge]\n(Chords: F - C - G - Am)\n(Transition: Harmonic shift creates a feeling of finality and resolve)\n(Vocal-Perf: Declamatory, almost desperate delivery; a powerful declaration of loyalty)\n(Phrase-Structure: Shorter, more rhythmic phrasing, emphasizing the weight of the promise)\n(Inst: Rhythm section hits hard on each chord change, emphasizing the lyrics)\n这一世英名我不要\n只求换来红颜一笑\n这一去如果还能轮回\n我愿意来生做牛马\n也要与你天涯相随\n\n[outro]\n(Chords: Am - F - C - G)\n(Sound-Design: Final vocal echoes into the distance)\n(Inst: Instrumentation slowly fades out, leaving only the solo Erhu playing its main theme)\n(Mix: Gradual decrescendo, ending on a final, lingering Erhu note with a long reverb tail)",
  "song_id": "01_红颜_20260404",
  "_meta": {
    "provider": "google",
    "model": "gemini-2.5-pro",
    "usage": {
      "prompt_tokens": 12237,
      "completion_tokens": 1133,
      "total_tokens": 16027
    },
    "generated_at": "2026-04-04T23:38:41.444261+08:00"
  },
  "_prompt_compressed": {
    "from": 1050,
    "to": 965
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}