Les

FM-1 firmware · 1.4.2

DUB-1

A self-playing dub techno machine: chord stabs into a tape echo, FM pings, sub bass and a ducking kick, arranged in eight-bar phrases you steer.

Made by
sbegueria
Released
October 29, 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 DUB-1 does

  • DUB-1 plays generative dub techno by itself from the moment it is switched on.
  • Eight pieces each hold their own key, tempo, sounds, groove and amount of movement, chosen with PRESETS.
  • The keys set the scale: press a lit key to take its note out, an unlit one to add it.
  • SELECT is a DJ filter on every page, REC holds the echo and held REC opens a grid of sixteen effects on the keys.
  • An eight bar arrangement brings Full, Break, Groove and Thin phrases, with fills and a kick that changes shape.
  • Hold a layer's button to nudge its sound, hold longer for a new voice, and hold SEL to lock the groove.
  • Hold GLO to save all eight pieces, and DUB-1 also saves by itself while resting.

Its modes

Arrangement
Mix the parts on a desk of meters, mute, solo, throw parts into the echo and play the global moves and sirens.
Form
Set how the piece unfolds with Energy, Vary, Motion and Drift.
Song
Set the intro, main and outro lengths in bars and whether parts enter Ambient or Pulse first.
Key
Set the tempo, root, mode and swing of the piece.
Chords
See and edit the eight chords coming, each a walk chord, one you wrote or a gap.
Walk
Watch the chord move on the circle of fifths and set the walk's character and how long a chord lasts.
Dub
Set the echo's send, time and feedback and the reverb.
Echo
Shape the echo's blur and tone and the plate's size and cloud.
Setup
Set what holds for every piece, and watch the CPU load and battery.
Song mode
Choose Endless, Song or Set, and a set's Transition of LP, Segue or Mix.

What Les checked

DUB-1 v1.4.3Scanned 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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