Offline MIDI synth • embedded ZIP support • GPU piano roll • tracker • hack stream • Midnight Animal composer
Toggle Instruments to inspect, mute, and mix MIDI layers.
Offline build: SoundFonts are disabled to avoid network/sample loading; the built-in synth is always available.
Generation is fully algorithmic instead of kit-stitched; every Generate click advances the seed. Drop .mid files or a ZIP of MIDI files here to add playable tracks; bundled demo MIDIs are embedded directly, and imports stay local to the page session.
Use solo, mute, color, and volume per layer.