FM-1 firmware · v1.5
bb1-firmware
Two drum machines at once across eight classic machines, an acid bass synth, tape echo and spring reverb, with dozens of songs and vintage rhythms.
- Made by
- TexasRADIO (The Big Beat)
- Released
- October 29, 2026
- Install
- On GitHub
- Scan
- Scanned, nothing harmful found · Oct 31 What we checked
- Last checked
- October 31, 2026
What bb1-firmware does
- Two drum machines, KIT A and KIT B, run together, each with its own pattern, kit and level.
- Eight machines are on hand: a real-time 808 plus sampled LinnDrum, DrumTraks, DMX, LM-1, Simmons, Rhythm King and Drumulator.
- Dillo is a monophonic bass synth with nine presets, from rubbery acid to hollow dub, including Square Acid.
- The library holds 67 songs with 233 playable drum sections, 21 eras and 138 classic rhythms from four vintage boxes.
- 205 ACID phrases across 27 Dillo banks bring accents and slides to the basslines.
- A three-head tape echo and a spring reverb sit on everything, and REC + FX held down throws a dub.
- New kits and patterns wait for the bar line, with the screen showing NEXT until they land.
- Your work saves into scenes on the FM-1, and holding SAVE for two seconds replaces a scene holding other data.
Its modes
- STUDIO
- The main playing screen, where HOME brings you back from anywhere and holding HOME gives help.
- SELECT
- Choose who you are playing: KIT A, KIT B or DILLO.
- PRESETS
- Turn to browse kits and press EDIT to load one.
- ALGORITHM
- Turn to browse songs, eras and patterns, then press EDIT to load.
- FX
- Set the echo, tape, spring, motion and sends.
- GLOBAL
- Set the tempo for the whole box.
What Les checked
bb1-firmware v1.5Scanned 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.
- The FM-1 Firmware Hub installs a different build of this release (bb1-1.5-id.fwsc). We scanned it too.
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
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.
You’re invited to the FM-1 beta.
Free for testers.
How to use grooves in Ableton 120:42 · 4 STEPS
How to use the arpeggiator0:37 · 4 STEPS
How to make a deep bass0:38 · 4 STEPS
How to make an evolving pad0:44 · 4 STEPS
How the Mod Matrix works0:39 · 3 STEPS
How to morph between two versions of a pad0:40 · 4 STEPS
How the two wave knobs on a PolyBrute oscillator work0:42 · 4 STEPS
How to add swing0:34 · 2 STEPS
How to change the bells on the FM-1 AMB-10:36 · 3 STEPS · AMB-1
How to turn the FM-1 AMB-1 into a drone0:37 · 3 STEPS · AMB-1
How to steer the melody on the FM-1 AMB-10:36 · 3 STEPS · AMB-1
How to use the arpeggiator0:41 · 4 STEPS · STOCK
How to play a dominant 7th on the FM-1 with ChoralRoot0:33 · 3 STEPS · CHORALROOT
How to play minor 9th chords with one finger on the FM-1 with ChoralRoot0:37 · 3 STEPS · CHORALROOT
How to play a I-vi-IV-V on the FM-1 with ChoralRoot0:39 · 4 STEPS · CHORALROOT
How to get the Casio CZ sound on the FM-1 with Melodee0:34 · 3 STEPS · MELODEE
How to get a Prophet-5 sound on the FM-1 with Melodee0:40 · 4 STEPS · MELODEE
How to record without quantize on the FM-1 with Melodee0:28 · 2 STEPS · MELODEE
What every FM-1 control doesPick the firmware on yours, then tap any control to see what it does.
How to add glide to one step0:38 · 3 STEPS
How to play a random sequence0:28 · 2 STEPS
Les is independent and not affiliated with M-VAVE or the firmware authors. M-VAVE and FM-1 are trademarks of their owners.