ZacharyZhang-NYandClaude Opus 5.5
8f31e53cfc
Real footage of the installed 0.1.5 apps, composited in Remotion with shape morphs between sections; synthesized score and UI sounds. Logs P3-17 (ElyTable keyboard zoom leaves the grid half-scrolled). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Audio
build.py (score in compose.py, UI sounds in sfx.py) writes public/audio/music.wav (48 kHz, 24-bit stereo, 2,880,000 samples, 96 BPM, 24 bars of 2.5 s in F major) and the six UI sounds in public/audio/sfx/; it is deterministic (fixed seeds) and needs numpy, scipy, pedalboard (GPL-3.0, used only as a tool, its output is unencumbered) and pyloudnorm (MIT). Structure: bars 1–2 a rising felt-piano line over a Bb–Csus pad swell, no drums; bar 3 the groove enters (half-time kick, brushed snare on 2 and 4, eighth hats, sub bass, eighth-note pluck arpeggio, piano motif over F–Dm–Bb–C); bar 7 a lift (shaker, busier bass, motif answered higher, FM bell counter-line); bar 11 thicker (sixteenth arpeggio, octave strings, ghost snares, motif B through Gm–Csus); bar 17 the peak (four-on-the-floor, open hats, melody in octaves over Bb–C–Am–Dm–Gm–C); bar 22 a resolving Fadd9 hit with the drums gone, then piano echoes decaying to silence by 59.4 s. A half-bar riser (swept noise plus a reversed swell of the next chord) precedes the downbeats of bars 3, 7, 11, 17 and 22, each carrying a soft sub impact; drums stop in the half-bar before each for space (snare rolls before 17 and 22). Every sound is synthesized here (additive felt piano, polyBLEP saw pads, additive plucks, FM bells, synthesized drums, convolution reverb from a generated impulse); no samples, soundfonts or existing melodies are used. Mix: kick-keyed ducking on pads, bass, arp and reverb, a 2.6 kHz dip so UI sounds sit on top, section gain rides, bus compression, soft saturation and a 4×-oversampled look-ahead limiter; the result is normalized to −16 LUFS.