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Melodee (Tess)

Firmware for FM-1 (M-VAVE)

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

ActiveSource: openGPL-3.0-only
Photo of the FM-1 screen on the Pattern page with the Turing engine: mode, length 16, probability and span dials above a row of step bars
Rastapopolix, via github.com

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/

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

Melodee (Tess) version history
VersionDate
1.1.02026-10-11

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