Les

FM-1 firmware · v0.1.0-green2-experimental

nightfall-fm1

A cyberpunk performance synth and sequencer with a spectral-terrain screen, paired with a browser studio for editing.

Made by
SylarPu-X
Released
October 21, 2026
Install
On GitHub
Scan
Scanned, nothing harmful found · Oct 31 What we checked
Last checked
October 31, 2026

What nightfall-fm1 does

  • Four tracks, DRUM, BASS, CHORD and LEAD, are chosen with the ALGORITHM encoder and always labelled on screen.
  • Three presets, MIDNIGHT, NEON RUN and AFTER RAIN, load from the PRESETS encoder while playback is stopped.
  • K1 to K4 act as BRIGHT, DENSITY, SPACE and MOTION performance macros on the home screen.
  • The sequencer holds four banks of sixteen steps, with OCT and OCT+ setting a loop of 16, 32, 48 or 64.
  • Each step carries its own pitch, velocity, length and probability, and REC captures live key playing into steps.
  • PLAY starts and stops the arrangement from bar one, and the SELECT encoder sets tempo from 40 to 240 BPM.
  • The MASTER potentiometer sets post-FX stereo output, and OCT and OCT+ shift the keyboard two octaves either way.
  • Save slots live in RAM, so export an .nfpr project from the browser studio before powering off.

Its modes

HOME
Play the keyboard and shape the sound with the BRIGHT, DENSITY, SPACE and MOTION macros on K1 to K4.
FX
Pick an effect module with SELECT, tweak its first three parameters and mix on K1 to K4, and bypass it with SEL.
ENV
Set attack, decay, sustain and release on K1 to K4 while the keys stay playable.
LFO
Dial a BPM-synced rate, depth, target of tone, amp or pitch, and a sine, triangle, square or saw shape.
EDIT
Shape the oscillator with wave, spread, octave and voice level.
GLO
Balance drum, bass, chord and lead levels, and use white keys for mutes, scenes, fill and auto-arrange.
SEQ
Toggle steps on the sixteen white keys and edit the focused step's pitch, velocity, length and probability.
ARP
Set order, division, gate and octave range, and switch the arpeggio on the LEAD track on or off with SEL.
SAVE
Choose a slot with SELECT and store or recall a setup with SEL.
SCALE
Cycle scale modes with SEL and play the keyboard locked to the current scale.

What Les checked

nightfall-fm1 v0.1.0-green2-experimentalScanned 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, 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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