{
  "prompt": "Genre: Mandopop / R&B Ballad; BPM: 68; Key: C Major; Rhythm: Slow, laid-back R&B drum machine groove with 16th-note hi-hats and a melodic, syncopated bassline; Instruments: Fingerpicked acoustic guitar (main harmony), clean electric guitar (melodic fills), smooth electric bass, subtle drum machine, lush orchestral strings (pads and swells); Vocals: Male tenor, intimate and conversational in verses, becoming more emotional in choruses, slightly husky timbre, with smooth, multi-tracked harmonies; Mood: Nostalgic, melancholic, reflective, bittersweet; Production: Clean, polished mix with upfront vocals, wide stereo field for strings, and tasteful reverb to create an intimate yet cinematic space; Structure: Intro, Verse, Chorus, Verse, Chorus, Bridge, Outro; Language: Mandarin; Highlight: The intimate, conversational male vocal delivery contrasting with lush, cinematic string arrangements.",
  "lyrics": "[intro]\n(Chords: C - G/B - Am - G)\n(Inst: Fingerpicked acoustic guitar motif; Ambient synth texture like a tape hiss; Distant electric guitar swell)\n(Mix: Narrow and intimate; Foreground guitar)\n\n[verse]\n(Chords: C - G/B - Am - G - F - C/E - Dm - G)\n(Vocal-Perf: Gentle chest voice; Conversational and breathy; Mezzo-piano)\n(Melody-Rhythm: Flowing; Syllabic; Relaxed phrasing)\n(Inst: Acoustic guitar is the primary accompaniment; Bass enters with simple root notes; Subtle kick and snare establish the beat)\n(Mix: Vocal centered and upfront; Instruments create a soft bed)\n爱像是一场小雨淅沥沥淅沥沥\n滴入我回忆\n爱又像一场旅行走停停走停停\n忽然遇见你\n停下了足迹\n(Transition: A single clean electric guitar note echoes into the next section)\n是否还是不太喜欢吃香菜\n到现在都没改\n那双原来最喜欢的匡威鞋带\n现在却解不开\n\n[chorus]\n(Chords: C - G/B - Am - G - F - Em - Dm - G)\n(Vocal-Perf: Rises to mezzo-forte; More sustained notes; Gentle emotional strain; Harmonized backing vocals enter)\n(Melody-Contour: Ascending line creates emotional lift)\n(Inst: Lush string section enters with warm pads; Drum groove becomes more defined with 16th-note hi-hats; Bass becomes more melodic)\n(Mix: Widens significantly with strings; Vocals sit within the lush arrangement while remaining clear)\n那张磁带一再一再它又再一次的卡带\n却还会再一遍一遍一遍又一遍听下来\n昨天的爱 已回不来\n却依然在心里徘徊\n却依然在心底徘徊\n\n[verse]\n(Chords: C - G/B - Am - G - F - C/E - Dm - G)\n(Vocal-Perf: Returns to a softer, more reflective delivery; Mezzo-piano)\n(Inst: Strings recede to sustained notes; Acoustic guitar and bass lead again; Clean electric guitar plays short, responsive melodic fills)\n(Mix: Narrows again, creating dynamic contrast with the chorus)\n(Transition: Drum fill is minimal, just a slight hi-hat variation)\n爱又像一场旅行走停停走停停\n忽然遇见你\n停下了足迹\n是否还是不太喜欢吃香菜\n到现在都没改\n那双原来最喜欢的匡威鞋带\n现在却解不开\n\n[chorus]\n(Chords: C - G/B - Am - G - F - Em - Dm - G)\n(Vocal-Perf: Full intensity; Ad-libs in the background; Layered harmonies are prominent)\n(Inst: Strings are at their fullest; Electric guitar plays a counter-melody underneath the vocal; Full drum groove drives the section)\n(Mix: Widest and most dynamic point of the song; Cinematic and full)\n那张磁带一再一再它又再一次的卡带\n却还会再一遍一遍一遍又一遍听下来\n昨天的爱 已回不来\n却依然在心里徘徊\n却依然在心底徘徊\n\n[bridge]\n(Chords: F - G - C - C)\n(Vocal-Perf: Spoken-word style; Rhythmic and percussive delivery; Low in the mix, almost like an inner monologue)\n(Inst: Bass and a simple synth pad hold the harmony; Drum pattern simplifies to kick and snaps; Tape sound effects)\n(Mix: Instruments drop out, creating space; Vocal is processed with a telephone-like EQ and delay)\n凶手和恋人都喜欢事后回现场\n看一看自己从前到底有多疯狂\n回忆里充满着罗曼蒂克的幻想\n那张磁带里藏着过往\n播放了就会回到现场\n\n[outro]\n(Chords: C - G/B - Am - G - F - Em - Dm - G)\n(Inst: Electric guitar plays the main vocal melody; Strings swell and hold; Acoustic guitar arpeggios fade out slowly)\n(Vocal-Perf: A final, distant, wordless hum)\n(Mix: Long reverb tails on all instruments; Slow fade to silence over the final chord)\n(Sound-Design: The sound of a cassette tape stopping concludes the track)",
  "song_id": "08_恋人_20260404",
  "_meta": {
    "provider": "google",
    "model": "gemini-2.5-pro",
    "usage": {
      "prompt_tokens": 11336,
      "completion_tokens": 1243,
      "total_tokens": 14404
    },
    "generated_at": "2026-04-04T17:27:05.382254+08:00"
  }
}