Les

FM-1 firmware · 1.3

Mutable Dreams

Six assignable synth tracks, or a lo-fi sample kit with three synths, drawing on Mutable Instruments ideas, with granular effects and chord journeys.

Made by
Kid Bunka
Released
October 29, 2026
Install
On the FM-1 Firmware Hub · source on GitHub
Scan
Scanned, nothing harmful found · Oct 31 What we checked
Last checked
October 31, 2026

What Mutable Dreams does

  • Six freely assignable synth tracks give you 336 tones across 108 musical Biomes plus Blank.
  • Swap three synth tracks for a Lo-Fi kit of eight editable pads drawn from five original sample sets.
  • Each track holds a 32-step sequence with notes, rests, velocity, gate and chance, plus eight generators.
  • Step recording and monophonic live overdub capture notes from the keyboard or USB MIDI.
  • Two LFOs per synth track move filter, colour, pan, sends and Warps blend over cycles of half a second to twenty seconds.
  • A shared granular cloud with Grain Size, tape motion and freeze sits alongside shared delay and room.
  • Saving a complete Biome keeps sequences, kit settings and LFO routing, and the FM-1 warns before unsaved edits are replaced.
  • A browser page runs the same instrument and edits, backs up or restores a connected FM-1 over USB MIDI.

Its modes

HOME
Turn the preset encoder to pick a complete Biome, and press PLAY to start or stop it.
EDIT
Cycle Sound, Filter, Envelope and Mix pages to shape the selected track with the four encoders.
GLO → KIT
Switch between six synth tracks and three synths plus one kit, and choose one of five Lo-Fi kits.
KIT PAD
Tune a pad, set its level, soften it with the filter and adjust its tail.
KIT STEPS
Build each pad's own 32-step lane by toggling hits, setting length or generating a pattern.
SEQ → MELODIC FLOW
Send a stored phrase Forward, Reverse, Pendulum, Orbit or Seeded with offset and velocity variation.
SEQ → SEQUENCE
Enter up to 32 steps with notes, rests, velocity, gate and chance, or record from the keyboard.
GLO → CHORD JOURNEY
Let one of eight journeys move selected tracks through chords lasting one to sixteen bars each.
FX → TIDAL MOTION A / B
Route two slow LFOs per synth track to targets such as filter, colour, pan and sends.
GLO → USER BANKS
Store sixteen named User Biomes and sixty-four sound slots on the FM-1.

What Les checked

Mutable Dreams v1.4Scanned October 31, 2026

What we checked for

  • The file is exactly the one its author published
  • It opens cleanly as an FM-1 firmware, nothing damaged
  • It doesn't show up on your computer as a keyboard, mouse or other input device
  • It doesn't show up as a USB drive or network adapter
  • Its text mentions no computer command tools, like PowerShell, Terminal or a download command

What we found

  • MIDI and audio, as expected

StatusScanned, nothing harmful found

Les scans every firmware here whose file is public, and shows what it checked and what it found. A scan lowers the risk; it can't rule it out. This firmware is made by its author, not by Les or M-VAVE. Back up first, and install at your own risk. How Les scans firmware

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