FM-1 firmware · v0.1
snapper
Generative 80s drum-heavy pop that builds tension over a drone until big gated drums crash in with the whole band.
- Made by
- delirioux
- Released
- October 29, 2026
- Install
- On GitHub
- Scan
- Scanned, nothing harmful found · Oct 31 What we checked
- Last checked
- October 31, 2026
What snapper does
- Press PLAY and Snapper writes generative 80s pop around four parts: pads, bass, keys and drums.
- Ten styles across LOUD and NIGHT bring their own tempo, sounds, chord loop, groove and drums.
- ALGORITHM picks a new song in the same style, and the same number always brings that song back.
- SEQ calls a drama: the band falls to one held chord, a tom roll swells, and the song returns a key higher.
- The keys play live over the top, snapped to the scale, with OCT- and OCT+ moving the octave.
- Pads, bass and keys each offer sixteen sounds on Felucca's engines, with Snapper's own gated drum one-shots.
- Eight sets on the SETS page hold a whole song, and settings save themselves while stopped.
Its modes
- PLAY
- Set BUILD, DRAMA, ENERGY and ROOM while watching the chord loop, the tension meter and the section playing.
- SOUND
- Choose one of sixteen sounds each for PADS, BASS and KEYS, and pick the BIG or BOX kit.
- KEY
- Set the root, the scale, one of twelve chord loops and how many bars a chord lasts.
- GROOVE
- Dial in SWING, the hat pattern, the bass line style and how often fills land.
- DRUMS
- Pick the kit, the kick and snare flavour and when the crash hits.
- MIX
- Balance the levels of the four parts.
- SPACE
- Set REVERB, DELAY, the delay time and the stereo WIDTH.
- FORM
- Turn the song form on or off and set the full band length, the number of dramas and the key up.
- KEYS
- Shape the riff with SPEED, RANGE, GATE and the phrase length, drawn on the panel.
What Les checked
snapper v0.1Scanned 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.