FM-1 firmware · 0.1-beta
Ketch
A four-channel tracker in the LSDJ mould: song, chain and phrase screens, instruments, per-row commands, effects and a mixer on the FM-1's keys.
- Made by
- risseraka
- Released
- October 12, 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 Ketch does
- Ketch turns the FM-1 into a four channel tracker in the LSDJ, picoTracker and M8 line.
- Each channel plays one of Felucca's sound engines, including FM, physical models, drums and grains.
- Songs are built as song, chain and phrase, with sixteen rows of note, instrument, velocity and commands.
- Row commands cover delay, retrigger, ramps, chance, hops, swing and every sound parameter of the instrument.
- The keybed becomes a gamepad: a d-pad on the lowest keys plus SHIFT, PLAY, OPTION and EDIT.
- Press REC to play notes on the middle keys, then record live with count-in and metronome or enter steps.
- A mixer gives level, mute and solo per channel, with delay, reverb and chorus shared across all four.
- Projects save into the FM-1's flash with SAVE, and USB-MIDI and USB audio let you record the output.
Its modes
- Song
- Lay out one column per channel and a chain number per row, playing down the rows.
- Chain
- Line up to sixteen phrases in a row, each with its own transpose.
- Phrase
- Write sixteen rows of note, instrument, velocity and commands like delay, retrigger, chance, swing and ramps.
- Instrument
- Pick the engine and preset, set level, pan and name, and assign the four knob slots.
- Event view
- See every row an instrument plays across the song and edit it everywhere at once.
- Envelope
- Shape attack, decay, sustain and release, and choose what the envelope modulates.
- LFO
- Set rate, wave, phase and fade, and choose what the LFO modulates.
- Voice
- Switch between poly and mono, set glide and detune, and send the voice to the effects.
- Project
- Load and manage project slots in flash and set tempo, step, swing, tune, metronome and count-in.
- Effects
- Dial in the delay, reverb and chorus shared by the four channels.
What Les checked
Ketch v0.1-betaScanned 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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Les is independent and not affiliated with M-VAVE or the firmware authors. M-VAVE and FM-1 are trademarks of their owners.