Source knob cycles through 6 tracks: the original CC-licensed
Spirals intro plus 5 N-Spheres tracks (Function, Intersect,
Attractor, Flux, Core) by Fenderson & Hansi3D.
- 48kHz FLAC conversions served via git LFS (~189MB total)
- Rotary knob with CSS custom property composable transforms
- Dynamic attribution (CC link for Spirals, album credit for N-Spheres)
- Signal selection persisted in localStorage
- Loading state overlay while buffering larger tracks
- Skin-aware labels (465: "Source", 545A: "Input")
- Keyboard accessible (Enter/Space to cycle)
