Les

FM-1 firmware · 0.2

Niagara Drift

A drone synth after the Lyra-8, Subharmonicon and Stylophone DS-2: two drifting analog-style drones you tune and shape rather than play.

Made by
Evan Yerburgh
Released
October 21, 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 Niagara Drift does

  • Niagara Drift turns the FM-1 into a drone synth with two always-on drones you tune, shape and move.
  • Each drone blends sine to square, adds a partner at an interval, a sub or subharmonic and noise into its own filter.
  • Twelve presets sit on the white keys, from Niagara and Abyss to Tanpura, Whistle, Cathedral and Metal.
  • You hold the top four white keys for the Weight, Shift, Clean and Wash gestures, which fade out as slowly as you held them.
  • Store 36 scenes of your own across banks A, B and C by holding SAVE and tapping a white key.
  • Tap a scene key to morph there, or press harder to crossfade partway and hold the blend with SEL.
  • REC records your knob moves and loops them for up to five minutes.
  • The Ultra LFO, the Swell, Drift, Wander and Age keep the sound breathing, through a four-type delay into a reverb that reaches Inf.

Its modes

Play · HOME
Set each drone's pitch and cutoff, then its level and resonance on the second page.
Tone · ENV
Mix each drone's noise and its white-to-pink colour, then set character, feedback, Age and Drift.
Osc · EDIT
Blend each drone's X-Wave from sine to square, set pulse width, then osc mix and drive.
Partner · SEQ
Choose each drone's partner interval and detune, then Shift's move, pitch glide, Wander and its scale.
LFO · LFO
Set the four LFO depths, then rate mod, which wave does it, cross-mod amount and delay wobble.
Swell · ARP
Shape the breathing gate with rate, depth, shape and swing.
Delay and Reverb · FX
Pick delay type, time, repeats and mix, then reverb type, length, damp and mix.
Setup · GLO
Set fade, switch and scene times, plus tune, stereo width and key pressure.

What Les checked

Niagara Drift v0.2Scanned 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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