{
  "prompt": "Genre: Modern Classical, Neo-Romantic Solo Piano; BPM: 136; Key: C Major; Rhythm: Expressive, free-flowing rubato; rhythm defined by cascading arpeggios and lyrical, non-metronomic melodic phrasing, accelerating and decelerating for emotional emphasis; Instruments: Grand piano; close-mic'd, capturing felt hammer attack, string resonance, and damper pedal noise; recorded in a reverberant concert hall; Vocals: Instrumental, no vocals; Mood: The feeling of reading an old, heartfelt letter by a window on a rainy afternoon, dust motes dancing in the dim light; Production: High-Fidelity, Pristine Radio-Ready Mix with expensive analogue warmth and silky smooth high-end; wide stereo image of the piano; natural hall reverb; minimal compression to preserve full dynamic range; Highlight: The explosive, dissonant ascending arpeggio in the bridge, a blur of notes resolving unexpectedly into a powerful, resonant tonic chord, creating a moment of pure catharsis.",
  "lyrics": "[intro]\n(Mix: Wide stereo piano image, prominent natural hall reverb with long tail. Focus on realism: felt hammer attack, damper pedal sounds, and sympathetic string resonance are audible. Minimal transparent compression to control peaks without sacrificing dynamics.)\n(Inst: Grand piano, right hand plays a delicate, questioning melody in the upper-middle register. Left hand provides sparse, arpeggiated chords.)\n(Hook-DNA: A simple 3-note motif (G-A-E); repeats twice with slight rhythmic variation, the second time resolving down to the 3rd of the tonic chord.)\n(Melody-Contour: A gentle arch, ascending from 5 to 6 then descending to 3.)\n(Chords: Cmaj7 - G/B - Am7 - Gsus4)\n\n[verse]\n(Inst: Piano melody becomes more lyrical and continuous, with longer phrases. Left hand transitions to flowing sixteenth-note arpeggios, covering a wider range.)\n(Vocal-Perf: Instrumental melody acts as vocal, phrased with breath-like pauses between longer melodic statements, building intensity.)\n(Melody-Rhythm: Phrases begin on the 'and' of beat 4, creating a gentle push into each new bar. Sustained notes are held over the bar line.)\n(Melody-Contour: A long, stepwise ascending line that builds tension over two phrases.)\n(Chords: Fmaj7 - C/E - Dm7 - Am7 - Gsus4 - G)\n\n[chorus]\n(Inst: Piano dynamics swell to forte. Right hand plays the main theme with fuller, octave-reinforced chords. Left hand plays powerful, resonant bass notes and full chords. Heavy use of the sustain pedal to create a lush wash of sound.)\n(Mix: The overall level and perceived room size increase. Reverb tail is more pronounced.)\n(Hook-DNA: A broad, powerful melodic statement; rhythm uses whole notes for two bars for grandeur, followed by a cascading sixteenth-note run; motif anchors on the high G (the 5th); repeats once with fuller left-hand chord voicings.)\n(Melody-Harmonic-Tension: The melodic peak lands on the 9th (D) over the tonic Cmaj7 chord, held for two full beats, creating a bright, beautiful tension before resolving downwards.)\n(Chords: C - G/B - Am - Am/G - Fmaj7 - C/E - Dm7 - Gsus4 - C)\n\n[bridge]\n(Inst: A dramatic shift in character. The piece becomes turbulent and passionate. Fast, virtuosic runs in the right hand over agitated, low-register chords in the left.)\n(Melody-Harmonic-Tension: Modulates to the relative minor (A minor). The melody insistently uses chromatic passing tones and centers around the tense tritone interval against the dominant chord, creating a feeling of desperate searching before resolving via a massive arpeggio back to G7.)\n(Chords: Am - E/G# - Gdim7 - F#m7b5 - Dm/F - E7sus4 - E7 - G7)\n\n[verse 2]\n(Inst: After the bridge's storm, the dynamic drops to piano. The melody is a quiet, contemplative variation of the first verse theme, played an octave higher, sounding more fragile. Left hand plays sparse, bell-like chords.)\n(Chords: Fmaj7 - C/E - Dm7 - Gsus4 - G)\n\n[chorus 2]\n(Inst: The final, grandest statement of the theme, played fortissimo. Right hand plays the melody in thick octaves. Left hand plays huge, spread-out arpeggios from the lowest register to the middle. The sustain pedal is fully engaged.)\n(Mix: The loudest point of the piece. The mix feels huge and immersive.)\n(Hook-DNA: The same theme as the first chorus, but the final cascading run is extended and leads to a higher climactic note.)\n(Melody-Harmonic-Tension: The same melodic tension on the 9th occurs, but this time the resolution is delayed by an extra bar of cascading arpeggios, heightening the eventual cathartic release.)\n(Chords: C - G/B - Am - Am/G - Fmaj7 - C/E - Dm7 - Gsus4 - C)\n\n[outro]\n(Inst: A long ritardando (slowing down). Fragments of the introductory motif are played very quietly (pianissimo), with long pauses between them. The final chord is a soft, high-register Cmaj7, held until it fades completely into the reverb.)\n(Mix: The direct sound of the piano fades, leaving only the long, lush hall reverb tail for the final seconds.)\n(Chords: Fmaj7 - C/E - Dm7 - Cmaj9)",
  "song_id": "01_When We Wish Upon A Star_20260512",
  "_meta": {
    "provider": "google",
    "model": "gemini-2.5-pro",
    "usage": {
      "prompt_tokens": 10361,
      "completion_tokens": 1340,
      "total_tokens": 14686
    },
    "generated_at": "2026-05-12T17:17:24.441424+08:00"
  },
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    "to": 961
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}