Les

FM-1 firmware · microtonal-v1.4-preview2

SARDAB

GHOULBOX dungeon synth retuned for the desert: maqam scales, editable microtonal tunings, and oud, qanun and ney sounds.

Made by
Jordan Tanner
Released
October 11, 2026
Built on
GHOULBOX
Install
On GitHub
Scan
Not scanned yet What we checked
Last checked
October 31, 2026

What SARDAB does

  • Forty factory scales cover maqam tunings such as RAST, BAYATI, SUZNAK and HIJAZ, and every played note takes the scale's tuning.
  • The TUNE pages trim each of the twelve keys by one cent, from −63 to +63, per track.
  • Four tracks each hold 64 steps with chords, ties, accents, slides, chance and ratchets, recorded live with overdub or written step by step.
  • Pick the power-on scene: DUNGEON, CRYPT, TAVERN, CHAPEL, BLANK, or CITADEL in Bayati on D with desert oud, ney and drums.
  • Four project slots and 32 sound slots hold your work, and a project keeps each track's scale, root and cent trims.
  • USB carries MIDI both ways and a stereo audio input, while the web editor uploads samples and imports Scala tunings.

Its modes

HOME
Play with the engine's four main controls on the knobs while the scope and the track's steps show below.
SCL
Choose the track's ROOT and scale, and set QNT to OFF, SNAP, WHITE or SEQ.
TUNE 1
Trim the root, flat second, second and flat third in one-cent steps from −63 to +63.
TUNE 2
Trim the third, fourth, flat fifth and fifth of the track's tuning in one-cent steps.
TUNE 3
Trim the flat sixth, sixth, flat seventh and seventh of the track's tuning in one-cent steps.
CHORD
Set CHRD to DIA3 triads, DIA7 sevenths or a fixed shape, and pick the voicing.
EDIT
Reach all eight controls of the track's engine, four per page, and swap engines from its layer.
STEP
Write notes, chords, ties, accents and slides into the piano roll or the drum grid.
PHRASES
Load a factory pattern such as DIRGE, LAMENT, TOMBBEAT, CARAVAN or SANDSTEP into the selected track.
SONG
Chain saved sections A to D into rows with repeats and play the whole piece.

What Les checked

SARDAB microtonal-v1.4-preview2Last scanned: microtonal-v1.4-preview1, 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
  • A serial port, which many FM-1 firmwares keep for debugging. It can't type into your computer.

StatusNot scanned yet

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

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

Invite-only for now

Ask Les about your own setup

Say what you want to make and what else you use. Les gives you steps for your own gear, one at a time, and says why each one works.

To get an invite: leave your email, then join the Les Discord.

Gear named here gets added to Les first.

We'll email your invite, plus an occasional note on what's new in Les. Unsubscribe anytime. Privacy

Les is independent and not affiliated with M-VAVE or the firmware authors. M-VAVE and FM-1 are trademarks of their owners.