Melodee (Tess)
Fork of Melodee that adds algorithmic note generators to its four tracks (Turing, Euclid, Markov, Morph) with Evolve, Form and Tweak pages for mutating phrases and building song sections.
by Rastapopolix

Brick risk. Flashing this carries a known, documented risk of damaging the device.
- Distribution
- Browser installer (WebMIDI / WebUSB)
- License notes
- Inherited from Melodee; original copyright and SPDX headers are kept.
- Source
- github.com https://github.com/Rastapopolix/melodee-tess
- Homepage
- rastapopolix.github.io https://rastapopolix.github.io/melodee-tess/webapp/sim/
- sequencer
- random
- euclidean
- performance
- editor
- emulator
Description
Forked from Melodee (keremimo), which is itself built on Felucca. Each track either stays a step sequencer or runs one of the generator engines; the sound engines and effects are unchanged. Generator state is saved in its own flash object, and projects from stock Melodee load with the generators off. The README says it is based on Melodee 1.1.0 as of the pre-release commit, without later upstream changes, and calls it experimental. A browser simulator, installer and editor are included.
Install notes
Browser installer in Chrome or Edge over USB, which also offers a way back to official V15 with a backup first. The .fwsc is on the releases page. Do not unplug the FM-1 while it writes.
Version history
| Version | Date |
|---|---|
| 1.1.0 | 2026-10-11 |