{
  "prompt": "Genre: Neo-classical / Impressionistic Piano / Cinematic; BPM: 136.09; Key: C major, highly modulatory and chromatic; Feel: Expressive rubato with dramatic accelerando and ritardando, rhythmically fluid and unquantized, prioritizing emotional phrasing over a strict metric grid.; Instruments: Concert Piano (solo expressive performance, wide dynamic range, rich tone with resonant sustain).; Lead: Piano right hand (melody), with left hand providing harmony, arpeggios, and counterpoint.; Motif: Rapid, cascading arpeggios across the keyboard, contrasting with lyrical, melancholic chordal melodies with a falling contour.; Harmony: Late-Romantic and Impressionistic with extended tertian chords, heavy chromaticism, frequent modulations, and unresolved tensions creating a rich, emotionally complex soundscape.; Highlight: The dramatic juxtaposition of tender, lyrical melodies and sudden, explosive, virtuosic arpeggios and runs.",
  "lyrics": "[Intro]\n(Chords: Cm(add9) - Fm7/C - Bdim7 - Cmaj - Eb/G - Abmaj7 - Dbmaj7(#11) - G7(b9, #5))\n(Harmonic-Rhythm: Fluid, one chord per 1-2 bars)\n(Lead: Piano, establishing a questioning melodic fragment over arpeggiated chords)\n(Inst: Solo grand piano, LH plays broken chords, RH plays sparse melody)\n(Dynamics: p)\n(Texture: Sparse, open)\n(Transition: A short, ascending run into A-section)\n\n[A-section]\n(Chords: Fm9 - Bbm7 - Eb7 - Abmaj7 - Dbm9 - Gb7 - Bmaj7 - Emaj7 - A7sus4 - A7)\n(Harmonic-Rhythm: One chord per bar)\n(Lead: Piano, a clear, lyrical melody in the right hand)\n(Inst: Piano, melody in octaves in RH, rich, rolled chords in LH)\n(Dynamics: mf)\n(Melody-Contour: Descending, arching phrases)\n(Transition: Accelerando with a rising chromatic line)\n\n[B-section]\n(Chords: Highly chromatic and non-functional, based on diminished and altered dominant sounds, e.g. G#dim7 - C#7(b9) - F#m - B7 - Em - A7(b9) - Dm)\n(Harmonic-Rhythm: Very fast, changing multiple times per bar)\n(Lead: Piano, focus is on virtuosic texture, melody fragmented within fast arpeggios)\n(Inst: Piano, rapid ascending and descending arpeggios and scales)\n(Dynamics: f -> ff)\n(Texture: Dense, turbulent)\n(Transition: A dramatic pause after a final fortissimo chord)\n\n[C-section]\n(Chords: E.g. C#maj - F#maj - Bmaj - Emaj - Amaj - Dmaj - Gmaj - Cmaj)\n(Harmonic-Rhythm: One chord per bar, stately pace)\n(Lead: Piano, melody embedded in the top voice of large block chords)\n(Inst: Piano, big, full-voiced chords in both hands, octave reinforcement in the bass)\n(Dynamics: mf -> f)\n(Texture: Homophonic, thick chords)\n(Transition: A delicate, descending arpeggio softens the mood)\n\n[A-section]\n(Chords: Reharmonization of the A-section theme, e.g., F#m9 - Bm7 - E7 - Amaj7 - Dm9 - G7 - Cmaj7)\n(Harmonic-Rhythm: One chord per bar)\n(Lead: Piano, lyrical A-theme returns in the right hand)\n(Inst: Piano, melody accompanied by intricate, flowing LH arpeggios)\n(Dynamics: mp -> mf)\n(Texture: Lyrical melody over flowing accompaniment)\n(Transition: Final phrase becomes fragmented and slows down)\n\n[Interlude]\n(Chords: A long, exploratory passage through various keys, e.g. C#m - G#7 - Am - E7 - Fmaj7 - C/G - G7...)\n(Harmonic-Rhythm: Highly variable, from static pedals to rapid changes)\n(Lead: Piano, shifts between registers, developing fragments of previous themes)\n(Inst: Piano, explores various techniques: tremolos, trills, delicate high-register figures, powerful bass octaves)\n(Dynamics: p -> ff, a long crescendo)\n(Transition: Builds directly into the climax with increasing tempo and volume)\n\n[Climax]\n(Chords: Powerful restatement of the C-section theme in a new key, e.g. Ebmaj - Abmaj - Dbmaj - Gbmaj... ending on a huge C major chord)\n(Harmonic-Rhythm: Stately, one chord per bar)\n(Lead: Piano, the chorale theme played with maximum power)\n(Inst: Piano, massive block chords, octave bass, full-pedal resonance)\n(Dynamics: ff)\n(Texture: Maximum density, homophonic power)\n(Transition: A single, ringing chord is held then fades into descending, quiet arpeggios)\n\n[Outro]\n(Chords: Cmaj9 - Fmaj7(#11) - C/G - G7sus4 - Cmaj9)\n(Harmonic-Rhythm: Very slow, one chord per phrase)\n(Lead: Piano, a final, simple melodic statement in the high register)\n(Inst: Piano, gentle, spaced-out chords in LH, a simple, bell-like melody in RH)\n(Dynamics: p -> ppp)\n(Texture: Very sparse, dissolving)\n(Transition: Final chord fades to silence)",
  "song_id": "01_When We Wish Upon A Star_20260514",
  "_meta": {
    "provider": "google",
    "model": "gemini-2.5-pro",
    "usage": {
      "prompt_tokens": 8872,
      "completion_tokens": 1370,
      "total_tokens": 14496
    },
    "generated_at": "2026-05-14T12:08:32.186784+08:00"
  },
  "_prompt_compressed": {
    "from": 1263,
    "to": 931
  }
}