Tessera
Each of the four tracks can play its own steps, an arpeggio, or one of thirteen generators, and the pages around them evolve the phrases, build song forms, pass hits between tracks and modulate anything from anything.
- Custom firmware
- Alpha
- Medium brick risk
- Reversible
Source codeWebsite: rastapopolix.github.io
This project hasn't been claimed by its maintainer yet, so its details come from the community. Is it yours? Claim it
Tessera 2.1.1 is a small fix to Tessera 2.1: chord names fit their boxes on CHORD's CIRCLE progression. Projects, presets and settings carry over from 2.1 as they are.
🔧 Fixes
- CHORD on CIRCLE: with 7th chords (CHRD DIA7), names like "Fmaj7" and "Bm7b5" ran out of their boxes into the neighbouring chords, because CIRCLE's seven chords leave narrow boxes. The chord's quality under its root now takes the largest size the box holds, so every name fits. In an even narrower box, "maj7" is written "M7".
📦 Installation
Open rastapopolix.github.io/tessera in Chrome or Edge, connect the
FM-1 by USB and press Install, then keep the tab open and the FM-1 connected until the install window says Done.
The installer can also put the official M-VAVE firmware back. Or take tessera-2.1.1.fwsc (dual core) or
tessera-2.1.1-1core.fwsc from this release.
Before you start
- How hard is it?
- EasyCopy a file or use a web page. No extra software.
- What you need
- A USB or MIDI cable
- A computer
- Can it break my device?
- Small chance of trouble, with a way to recover.
- Can I undo it?
- Yes. You can go back to the official software.
Did it work for you?
Did Tessera v2.1.1 work on your M-VAVE FM-1?
No reports yet for v2.1.1.
One-tap reports from owners. Bricked reports are checked before they count.
Compatibility
Devices: M-VAVE FM-1.
No compatibility information yet.
Getting started
From the project's README ("Install"):
Flash it from your browser (Chrome or Edge, FM-1 connected directly by USB): Web installer. Afterwards you can edit sounds and sequences from the computer with the web editor.
Each release has two builds: tessera-X.Y.fwsc (standard, dual core: start here) and tessera-X.Y-1core.fwsc (single core, for FM-1s that crash with the standard build).
Do not unplug the FM-1 while it is writing. This is experimental firmware: use it at your own risk. The installer page also has a way back to the official V15 firmware, with a backup first.
Risk and recovery
- Brick risk
- Medium
- Reversible
- Yes
- Requires opening the device
- No
From the project's README ("Install"):
Flash it from your browser (Chrome or Edge, FM-1 connected directly by USB): Web installer. Afterwards you can edit sounds and sequences from the computer with the web editor.
Each release has two builds: tessera-X.Y.fwsc (standard, dual core: start here) and tessera-X.Y-1core.fwsc (single core, for FM-1s that crash with the standard build).
Do not unplug the FM-1 while it is writing. This is experimental firmware: use it at your own risk. The installer page also has a way back to the official V15 firmware, with a backup first.
Releases
| Version | Name | Released |
|---|---|---|
| v2.1.1 | Tessera 2.1.1Latest | 26 October 2026 |
| v2.1 | Tessera 2.1 | 26 October 2026 |
| v2.0.2 | Tessera 2.0.2 | 25 October 2026 |
| v2.0.1 | Tessera 2.0.1 | 23 October 2026 |
| v2.0 | Tessera 2.0 | 23 October 2026 |
| v1.3.3 | Melodee (Tess) v1.3.3 | 19 October 2026 |
| v1.3.1 | Melodee (Tess) v1.3.1 | 18 October 2026 |
| v1.2.7 | Melodee (Tess) v1.2.7 | 17 October 2026 |
| v1.1.0 | Melodee (Tess) v1.1.0 | 11 October 2026 |
Credits, license and support
- License
- GPL-3.0