Les

FM-1 firmware · E1

AMB-1-Evolved

A generative ambient machine keeping AMB-1's controls, with sixty-four sound presets, thirty-two themes and twenty scales.

Made by
kidbee85-beep
Released
October 16, 2026
Built on
AMB-1
Install
On GitHub
Scan
Scanned, nothing harmful found · Oct 31 What we checked
Last checked
October 31, 2026

What AMB-1-Evolved does

  • Generative ambient playing runs across four layers: pad, melody, bass and pulse.
  • Hold ENV, ARP, LFO or SEQ and turn PRESETS to pick from 16 sounds per layer.
  • PRESETS steps through 32 musical themes, the first eight being the familiar AMB-1 recipes.
  • ALGORITHM picks one of 20 scales, and HOME plus ALGORITHM switches between the Garden, Walk, Mirror, Rotate and Gravity generators.
  • PLAY starts or rests the generative playback, REC freezes the harmonic state while reverb rings on, and EDIT calls the next chord.
  • The note keys add or remove tones from the note pool, and OCT minus and OCT plus shift the melody octave.
  • A short press of SAVE stores all 32 theme states, and holding SAVE about 1.5 seconds resets the current theme to its recipe.
  • A USB data cable connects the FM-1 to the computer, and MIDI out is set on the Setup page.

Its modes

Garden
Set tempo and the generative development of the whole theme with K1 to K4 for Tempo, Evolve, Motion and Drift.
Pad
Shape the pad layer with Level, Swell, Bright and Colour.
Bells
Set Level, Density, Tone and Octave of the melody loops.
Bass
Control Level, Octave, Glide and Fifth of the bass foundation.
Pulse
Set Level, Hits, Swing and Hats of the rhythm.
Space
Dial in Echo, Echo time, Reverb and Size.
Setup
Choose Root, Tune, MIDI out and Lights.

What Les checked

AMB-1-Evolved E1Scanned 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 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

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.