Les

FM-1 firmware · v0.9

backbeat

A live drummer for guitarists: songs built from intro, verse, chorus and other sections that you switch between from footswitches, with fills on request.

Made by
ForrestPanda
Released
October 24, 2026
Install
On GitHub
Scan
Scanned, nothing harmful found · Oct 31 What we checked
Last checked
October 31, 2026

What backbeat does

  • BackBeat turns the FM-1 into a drummer you lead from your pedalboard over the TRS MIDI jack.
  • A song is up to sixteen named sections, intro, verse, chorus, bridge, solo and outro, with its tempo, kit and swing.
  • Footswitches cue a section on the bar line, ask for a fill, a break, the ending, a stop, or tap the tempo.
  • MULDJORD is a layered acoustic kit with up to four velocity layers a drum, round-robin kicks and snares and twelve voices.
  • Sixteen factory grooves play straight away, and sixteen user slots in flash hold the songs you send.
  • The web editor imports a Guitar Pro or MIDI drum track, finds the sections, edits them on a grid and sends them.
  • On LIVE, PLAY starts and stops, SEL fills, ENV and LFO step back and forward, KNOB 1 sets the tempo.
  • With TRS TO USB on, the FM-1 passes the pedal over USB so a tablet shows the LIVE view.

Its modes

SONGS
Pick and load a song from your sixteen USER slots or the sixteen read-only FACTORY grooves.
EDIT
Change the hits, levels and ratchets of the section playing on the drum grid and hold SAVE to write it back.
SETUP
Set the pedal channel, count-in, MIDI, tempo, swing, humanize, drums, screen and system settings.

What Les checked

backbeat v0.9.2Scanned October 31, 2026

What we checked for

  • The file is exactly the one its author published
  • 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.

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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