FM-1 firmware · 1.2.0
MC-1
An original four-part groovebox with a 1990s workflow: three melodic parts on an LA-style sound engine, synthesized drums and an acid part.
- Made by
- dspaudio
- Released
- October 20, 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 MC-1 does
- Play three melodic parts and sixteen drum lanes using 128 presets built from recorded instrument attacks and a monophonic acid engine.
- Build 64 patterns of 16 steps across four parts, with swing, gate, accent, slide and tempos from 40 to 240 BPM.
- Eight synthesized kits cover kick, snare, hats, clap, toms, cymbals and percussion, edited as hits and lane levels on a grid.
- Arrange up to 128 pattern entries with one to sixteen repeats each, stopping at the end or looping.
- Send every part to four shared effect banks of reverbs, delays, choruses and flangers, with a master volume and limiter.
- Hold a chord and the arpeggiator turns it into UP, DOWN, UP-DOWN, ORDER, RANDOM or CHORD phrases.
- PLAY + REC records played notes plus sound, level and send movements as step-quantized automation.
- Press SAVE twice while stopped to store a project; USB MIDI, TRS MIDI input and stereo USB audio reach a computer.
Its modes
- HOME
- Follow all four parts, see note pitches and the playback cursor, and reach the performance controls.
- PRESETS
- Browse the melodic sound bank or the drum kits in a seven-row list that closes after a short idle.
- GLOBAL MIXER
- Set PART1, PART2, PART3 and DRUMS levels, switch to PAN with ENV, and mute the selected part with ARP.
- FX SENDS
- Set the selected part's four independent sends to the R/D1, C/F1, R/D2 and C/F2 banks.
- FX TYPES
- Choose the algorithm for each of the four shared effect banks.
- ARP
- Set the melodic arpeggiator's MODE, RATE, OCT and GATE and toggle latch with LFO.
- SONG
- Arrange patterns with POS, PATT, REPT and LEN knobs and switch whole-song looping.
- KNOB AUTOMATION
- See the shared event capacity, current pattern usage and REC state, and clear this pattern's automation.
- MIDI
- Set the four part channels and pick the clock source.
- ANALOG
- Dial the selected melodic part's tuning variance and slow drift.
What Les checked
MC-1 v1.2.0Scanned 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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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.