Les

FM-1 firmware · v0.1-beta

modular-one

A film-music writing companion with soft FM pads and electric pianos, a ping-pong delay and plate reverb, and three synth tracks.

Made by
Alexis Arakis (Bungle Society)
Released
October 20, 2026
Install
On GitHub
Scan
Scanned, nothing harmful found · Oct 31 What we checked
Last checked
October 31, 2026

What modular-one does

  • The TOWN engine gives a carrier, a modulator with feedback, a detunable second modulator and a soft low-pass per voice.
  • Sixteen presets sit in two families: SOUFFLES pads and KEYS soft electric pianos.
  • Three synth tracks start on SOUFFLE, PRINTEMP and VELOURS EP, and ALGORITHM moves between them.
  • Each track has a pattern of 16 to 64 steps, live recording with REC and an arpeggiator with ARP.
  • A stereo ping-pong delay, an 80's plate reverb and the island shimmer run on the mix, with chorus and DIST.
  • MONT opens the brightness and adds vibrato, NUIT darkens and lengthens the tails, and ILE fades the island in.
  • Hold OCT- and OCT+ together for one second to play Satie's 1st Gymnopedie, and play over it at the keyboard.
  • Projects save three synth tracks, and USB MIDI from a computer plays the selected track or a fixed one.

Its modes

HOME
Play and shape the current sound with BRIL, MONT, SUS and REL while the live waveform and preset name show.
FM
Set BRIL brightness, GRAIN feedback, TIMB ratios and CLOCH detune for the three operators.
VILLE
Open the montee with MONT, darken the sound with NUIT and switch the island on with ILE.
ENV
Shape the amplitude envelope with ATK, DEC, SUS and REL.
PRESETS
Choose one of the sixteen sounds with knob 1 and swap between the SOUFFLES and KEYS families with knob 2.
FX
Reach the effect machines for the track.
DLY
Set the ping-pong delay, whose time follows the tempo.
REV/CHO
Set the plate reverb and the chorus.
STEP
Write the steps of the current pattern.
TRACKS
See the three tracks side by side as a mixer.

What Les checked

modular-one v0.1-betaScanned October 31, 2026

What we checked for

  • The file is exactly the one its author published
  • It's the same file we saw when this release first came out
  • 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, as expected
  • A serial port, which many FM-1 firmwares keep for debugging. It can't type into your computer.

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

Invite-only for now

Ask Les about your own setup

Say what you want to make and what else you use. Les gives you steps for your own gear, one at a time, and says why each one works.

To get an invite: leave your email, then join the Les Discord.

Gear named here gets added to Les first.

We'll email your invite, plus an occasional note on what's new in Les. Unsubscribe anytime. Privacy

Les is independent and not affiliated with M-VAVE or the firmware authors. M-VAVE and FM-1 are trademarks of their owners.