Les

FM-1 firmware · 0.25.0

Nauclerus

An eight-track drum groovebox with up to two acid bass voices, a pattern remixer, an acid melody generator, Grids rhythms and per-track LFOs.

Made by
Mr. Roboto
Released
October 28, 2026
Built on
Hortator
Install
On the FM-1 Firmware Hub · source on GitHub
Scan
Not scanned yet What we checked
Last checked
October 31, 2026

What Nauclerus does

  • Eight drum tracks play 808 and 909 kicks, snares, claps, hats, toms, cowbell, cymbal, ports of Plaits' drum algorithms and samples.
  • Up to two tracks run ACID, a bass voice with SAW, variable-width PULSE or MORPH waves into a resonant four-pole ladder filter.
  • Each track holds up to 64 steps with its own length, division, swing, accents, probability and ratchets, or follows a GRIDS channel.
  • SCL turns the white keys into a keyboard: play the selected track, record it live while playing, or enter notes step by step.
  • TB-3PO writes seeded acid lines in 22 scales, and ORB Remix reorders which stored step each playing position reads.
  • Two LFOs per track feed four routing slots, while MOTION and parameter locks capture knob turns per step.
  • Every track has DIST, SLICER and RESON with delay, reverb and chorus sends, and holding FX opens PERFORM for live master effects.

Its modes

EDIT
Pick the selected track's model and shape its sound with the four knobs, and hold EDIT for the PRESETS list.
STEP
Turn steps on and off on the 16 white keys and hold a step for PROB, RATCH and ACCENT.
PATTERN
Set the track's length up to 64 steps, its division, swing and whether it reads steps or a Grids channel.
REMIX
Draft a Remix bank and pattern, confirm it with K4 SET or OCT+, and switch the mapping on or off.
MOTION
Play back recorded knob movement, see the track's MOTION and LOCKS counts, and clear its motion.
SONG
Chain up to 16 rows of project slots with repeats and an optional loop, then start the chain with PLAY.
GRIDS
Set the drum pattern map, X, Y and CHAOS or Euclidean lengths, assign the first three tracks, and write a rhythm into steps.
GENERATE
Set density, accent, slide and octave range for the acid line, then press OCT+ for a new line or OCT- to mutate it.
DEST
Route each of the four slots from either LFO, bipolar or one-sided, to a destination with its own depth.
PROJECT
Choose a slot A to D, name the project, and load or save it with the transport stopped.

What Les checked

Nauclerus

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