{
  "prompt": "Genre: J-Rock / Anisong; BPM: 150; Key: G#m; Rhythm: Fast, driving rock beat, 16th-note hi-hats. Kick locks with guitar riffs. Frequent complex fills.; Instruments: Distorted lead guitar (fast solos), chugging rhythm guitars (power chords), punchy bass (melodic runs), aggressive acoustic drums, subtle background synth pads.; Vocals: Female. Clear, powerful high-range vocals with a bright, slightly nasal timbre. Strong vibrato on sustained notes. Urgent and emotional delivery.; Mood: Running full-tilt through a rainy, neon-lit city at night, chasing a silhouette just out of reach.; Production: High-fidelity digital clarity, wide stereo guitars. Centered, compressed vocals. Loud, polished rock mix.; Language: Japanese; Highlight: The sustained vocal note at the end of the pre-chorus, held over a brief instrumental pause before the drums launch the first chorus with explosive force.",
  "lyrics": "[intro]\n(Chords: G#m - E - F# - B - G#m - E - C#m - F#)\n(Inst: Fast, technical distorted guitar riff establishes the main melodic theme. Full band enters with explosive energy. Double-time drums.)\n(Mix: Wide stereo field, drums and bass centered, guitars panned hard L/R.)\n(Transition: Drum fill into verse.)\n\n[verse]\n(Chords: G#m - E - F# - B - G#m - E - F# - G#m)\n(Vocal-Perf: Controlled and tense chest voice, mezzo-forte. Rhythmic and precise phrasing.)\n(Inst: Rhythm guitars play tight, palm-muted 16th-note power chords. Bass follows root notes with syncopation. Drums maintain a driving hi-hat pattern.)\n(Mix: Vocals sit cleanly on top of the dense instrumental bed.)\n渇いた心で駆け抜ける\nごめんね何もできなくて\n痛みを分かち合うことさえ\nあなたは許してくれない\n(Transition: Guitar holds a power chord, cymbal swell builds anticipation.)\n\n[pre-chorus]\n(Chords: C#m - G#m - E - F#)\n(Vocal-Perf: Melody ascends, building intensity towards the chorus. Voice becomes more open and emotional.)\n(Inst: Guitars switch to more open, ringing power chords. Bass plays a more melodic line.)\n無垢に生きるため振り向かず\n背中向けて 去ってしまう\non the lonely rail\n(Transition: Brief full band stop on the last word, followed by an explosive drum fill that launches into the chorus.)\n\n[chorus]\n(Chords: G#m - E - B - F# - C#m - G#m - E - F#)\n(Vocal-Perf: Soaring, powerful belting in a higher register. Sustained notes with prominent vibrato. Forte.)\n(Inst: Guitars play full, open power chords. Lead guitar plays a counter-melody. Drums shift to heavy crash cymbal accents on the downbeats.)\n(Mix: Widens even further. Subtle synth pads enter, adding harmonic depth.)\n私ついていくよ\nどんな辛い世界の闇の中でさえ\nきっとあなたは輝いて\n超える未来の果て\n弱さ故に魂こわされぬように\nmy way 重なるよ\nいまふたりに God bless...\n(Transition: Fast guitar solo lick over a sustained band chord, leading into the bridge.)\n\n[bridge]\n(Chords: C#m - G#m - E - F# - C#m - G#m - E - F#)\n(Vocal-Perf: Becomes slightly softer, more introspective, then builds back to full power.)\n(Inst: Dynamic drop. Guitars use a cleaner, arpeggiated texture at first, then reintroduce distortion to build back up.)\nあなたがいて 私がいて\nほかの人は消えてしまった\n淡い夢の美しさを描きながら\n傷跡なぞる\n(Transition: Massive drum fill and ascending vocal line create a powerful ramp into the final chorus.)\n\n[chorus]\n(Chords: G#m - E - B - F# - C#m - G#m - E - F#)\n(Vocal-Perf: Maximum emotional intensity. Ad-libbed harmonies and background vocals add layers.)\n(Inst: All instruments at full power. Lead guitar plays more aggressive fills and counter-melodies.)\n(Mix: The densest point of the song. Vocals pushed slightly higher with more reverb.)\nだから私ついていくよ\nどんな辛い世界の闇の中でさえ\nきっとあなたは輝いて\n超える未来の果て\n弱さ故に魂こわされぬように\nmy way 重なるよ\nいまふたりに God bless...\n\n[outro]\n(Chords: G#m - E - F# - G#m)\n(Inst: Features the main guitar riff from the intro. Band plays a final syncopated hit together.)\n(Mix: Ends abruptly on a final chord with guitar feedback ringing out and fading.)",
  "song_id": "05_God knows..._20260420",
  "_meta": {
    "provider": "google",
    "model": "gemini-2.5-pro",
    "usage": {
      "prompt_tokens": 12385,
      "completion_tokens": 1177,
      "total_tokens": 15962
    },
    "generated_at": "2026-04-20T22:53:09.523324+08:00"
  }
}