Skiff
Six-track groovebox forked from Felucca: 14 synth and drum engines, 64-step sequencer with trig conditions and parameter locks, pattern pool and songs, performance layer, FM6 editing on the unit and a browser editor.
by illuminus5
Brick risk. Flashing this carries a known, documented risk of damaging the device.
- Distribution
- Browser installer (WebMIDI / WebUSB)
- License notes
- Bundled fonts, ported DSP and SDK files keep their own licences (LICENSES/); the Hügelton Sample Pack is GPL-3.0-only, not CC0.
- Source
- github.com https://github.com/illuminus5/skiff
- Homepage
- illuminus5.github.io https://illuminus5.github.io/skiff/
- synth-engine
- sequencer
- drums
- fm
- fx
- performance
- editor
- emulator
- usb-audio
- midi
Description
Fork of Felucca 1.1.5 that keeps its engines, sounds and file formats, so Felucca sounds and projects load. Each page draws what its knobs do, and holding HOME shows every control's job. Version 1.1 adds editing of every FM6 operator value on the FM-1 and a graph of the operator envelopes. It has a web editor, a browser emulator and a stereo USB audio input for recording the master on a computer.
Install notes
Browser installer in Chrome or Edge over USB, or tools/fm1_install.py with the .fwsc from the releases page. The installer page can return the FM-1 to official V15 after saving a backup. An FM-1 stuck in boot mode (WL80UBOOT) can be recovered with tools/fm1_install.py or FM-1 Transporter.
Version history
| Version | Date | Notes |
|---|---|---|
| 1.1 | 2026-10-13 | FM6 operator values editable on the unit, with an envelope graph and an init-from-sine patch. |
| 1.0 | 2026-10-12 |