Les

FM-1 firmware · build-735-r11

FMER

Six-operator FM and virtual analog synthesis with four-track sequencing, song arrangement and a Windows companion app for sounds and backups.

Made by
Robert Choudury
Released
October 25, 2026
Install
On GitHub
Scan
Not scanned yet What we checked
Last checked
October 31, 2026

What FMER does

  • Two engines are on board: six-operator FM with 32 algorithm diagrams and DX7 voice exchange, plus Virtual Analog.
  • Virtual Analog offers sine, saw, square, triangle and noise with direct oscillator, filter and envelope work.
  • Record notes or arpeggiator output after a four-beat count-in, quantized, into 16 patterns per project of up to 64 steps.
  • Edit notes, rests and ties, copy sections and chain patterns, then arrange them across four song lanes with repeats and transpose.
  • Shape sounds with a reorderable chain of filter, reverb, delay, chorus, phaser and drive, including four reverb models and synced delay.
  • Eleven arpeggiator types cover Strum, octave range, latch, triplets, gate and swing.
  • Mix four tracks with volume, mute, solo, FX routing, patch and pattern controls, next-bar launches and expanded waveform views.
  • Keep 16 projects and two editable 64-slot instrument banks on the instrument, with 192 original sounds to choose from.

Its modes

1V
Play a single voice with glide.
6V
Play the instrument polyphonically with six voices.
4T
Play four independent mono parts, with playback stopping as you enter or leave this mode.
HOME
Reach the main controls, which stay in the same order across filter types.

What Les checked

FMER build-735-r11

StatusNot scanned yet

We couldn't tell which file in this release is the FM-1 one, so we didn't scan it.

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