{
  "title": "Velvet Pocket",
  "lyrics": "[纯音乐]",
  "prompt": "Genre: Contemporary Jazz / Gospel Jazz; BPM: 109; Key: F major; Feel: Relaxed straight-eighths groove with a loose, organic pocket, featuring a syncopated bass line against a steady hi-hat and a crisp backbeat on 2 and 4.; Instruments: Piano (lead melody and harmony, bright resonant tone), Upright Bass (rhythmic foundation, warm plucked woody attack), Acoustic Drum Kit (groove keeper, clean sound with crisp snare and ride cymbal accents).; Lead: Piano throughout all sections.; Motif: A syncopated, soulful melodic phrase starting on an upbeat, built around a rhythmic cell of eighth-quarter-eighth, harmonized with rich major 7th and minor 9th chords.; Highlight: The blend of sophisticated jazz voicings and gospel-inflected harmony, delivered with a highly dynamic and delicate touch on the grand piano.",
  "cover_prompt": "A close-up of weathered piano keys bathed in warm amber light, casting soft elongated shadows across a polished wooden surface. The scene radiates an intimate, late-afternoon glow with a shallow depth of field, evoking quiet sophistication and soulful ease. Cinematic photography with a film grain texture and rich, muted gold tones.",
  "song_id": "03_Laughter in the Rain_20260514"
}