Les

FM-1 firmware · 0.1.0-beta.1

GuitChordi

A strummed guitar and string instrument: pick chords on the black keys, then play them freely, strummed in rhythm or arpeggiated, across sixteen sounds.

Made by
Stoogs
Released
October 26, 2026
Install
On the FM-1 Firmware Hub · source on GitHub
Scan
Not scanned yet What we checked
Last checked
October 31, 2026

What GuitChordi does

  • Sixteen instruments cover nylon, steel, jumbo, palm-muted, clean, jazz, crunch and heavy guitars, harp, violin, pizzicato cello, bass and dulcimer.
  • Fifty chord style banks span jazz, lo-fi, rock, blues, pop, soul, folk and ambient, each loading eleven chords.
  • Eleven black keys choose the chord and sixteen light keys strum it in soft, normal and accent zones.
  • Strum and Arp repeat a held chord with eighteen beat divisions, gate settings, swing and a strum sweep from instant to 250 ms.
  • Turn SELECT for tempo between 40 and 240 BPM, and MASTER for output level.
  • Knob 4 in Freeplay gives each slot one of six voicings, and GLO K3 offers fourteen guitar tunings.
  • Hold ENV for three seconds to lock the chord while rhythm parameters and tempo stay editable.
  • SAVE keeps the mode, tempo, bank, slot edits, instrument and settings, and holding GLO three seconds opens a full reset.

Its modes

Freeplay
Black keys pick a chord silently and only the white contacts you touch sound.
Strum
Hold a black chord key and the chord repeats as strums across ten patterns.
FX page
Knobs set intensity, transpose, room and the per-slot chord voicing.
GLO
Global settings for gate tails, strum humanity, guitar tuning and rhythm velocity.
HOME
Returns you to the performance page to carry on playing.
EDIT
Reassigns the chord on the selected black key or resets slots to factory.

What Les checked

GuitChordi

StatusNot scanned yet

Les hasn't scanned this firmware yet.

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

Invite-only for now

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.

Gear named here gets added to Les first.

We'll email your invite, plus an occasional note on what's new in Les. Unsubscribe anytime. Privacy

Les is independent and not affiliated with M-VAVE or the firmware authors. M-VAVE and FM-1 are trademarks of their owners.