Les

FM-1 firmware · 0.3.0

MOPE-1

A melancholy wavetable synth drawn as a pixel blob in a rainy room, with a toy-keyboard backing band, auto-bass, arpeggiator and loop recording.

Made by
slothpallas
Released
October 29, 2026
Install
On the FM-1 Firmware Hub · source on GitHub
Scan
Not scanned yet What we checked
Last checked
October 31, 2026

What MOPE-1 does

  • A six-voice wavetable synth gives you 16 tables, two detuned oscillators, a sine sub and a resonant filter with drive.
  • A second shadow oscillator per voice sits up to two octaves away and can mix, FM, ring modulate or sync.
  • Two LFOs with nine shapes aim at the position, cutoff, pitch, volume or shadow, alongside an amp envelope and a mod envelope.
  • Press PLAY for the band and REC to record a 1, 2 or 4 bar loop after a count-in, then overdub on top.
  • Open SEQ and the 16 white keys become steps, so you can choose, retune, lengthen or clear notes, or edit the whole loop at once.
  • Thirteen synthesized drum styles each bring a main bar, a fill every fourth bar, their own tempo and swing, plus an auto-bass that always plays minor.
  • Effects cover fry, three-tap chorus, ping-pong delay, an eight-wall reverb from closet to void, tape wow and flutter, and a limiter.
  • SAVE stores your sound and loop together, and the firmware also saves by itself when things go quiet.

Its modes

Body
Pick the wavetable, morph its position, spread the detuned copy and add the sine sub.
Eyes
Set the filter cutoff, resonance, kind (low, band, high, notch or comb) and drive.
Mouth
Shape the amp envelope with attack, decay, sustain and release.
Vibe
Set the first LFO's rate, depth, shape and destination.
Tears
Dial in the chorus and the ping-pong delay's amount, time and feedback.
Walls
Set reverb amount and room size, plus fry and tape wobble.
Tape deck
Choose the drum style and set tempo, swing and the Human looseness.
Mixer
Balance the voice, drums, bass and gunk on four faders with live meters.
Arp
Choose the arpeggiator mode, rate, octave range and gate as a piano roll.
Setup
Set glide, MIDI channel, MIDI out and overall tune.

What Les checked

MOPE-1

StatusNot scanned yet

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