Les

FM-1 firmware · 1.0.1

TastyWaves

A deep wavetable polysynth with twelve voices, room for your own imported wavetables, an arpeggiator and two chord-playing step sequencers.

Made by
Mark Weiss (marksweiss)
Released
October 26, 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 TastyWaves does

  • TastyWaves is a 12-voice wavetable synth with two oscillators per voice, a sub oscillator and noise.
  • You get 12 built-in wavetables plus 8 slots for your own, a resonant state-variable filter, two envelopes and an LFO.
  • Two 32-step sequencers run on one clock, each with its own rate, gate, swing, chord, arpeggiator, octaves and level.
  • Every step can play a chord, and a modulation lane moves position, cutoff, BEND or drive per step of SEQ1.
  • The arpeggiator offers UP, DOWN, UP-DN, UP-DN2, RANDOM, PLAYED and CHORD, with LATCH from PLAY.
  • Four knobs set the values on screen, page buttons step through tabs, and holding ARP or SEQ switches them on.
  • A browser tool loads Serum, WaveEdit, Ableton and Surge wavetables and backs up your patch library.

Its modes

HOME
Shows the oscillator wave and harmonics, with the four knobs set to cutoff, resonance, attack and release.
EDIT
Sets OSC1 and OSC2 position, semitone, fine and level, the MIX of sub, noise and BEND, and the FILTER.
MIX
Balances the four levels and sets BEND and which oscillators it acts on.
ENV
Shapes the AMP and MOD envelopes and picks what the MOD envelope moves and its curve.
LFO
Picks the LFO shape and rate and sends it to position and pitch or cutoff and amplitude.
FX
Builds a chain of four effect slots, each with a type, two values and a mix.
SEL
Sets voice mode, glide, bend range and quality, the control routings, and output volume and drive.
GLO
Chooses the HOME look and shows the version, highest CPU load and any audio drops.
ARP
Sets the arpeggiator mode, rate, octaves, gate, swing and tempo.
SEQ
Records and plays SEQ1 and SEQ2 and edits the modulation lane on the LANE tab.

What Les checked

TastyWaves v1.0.1Scanned 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

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