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The Firmware Hub · FM-1 · COQUÍ

COQUÍ for the M-VAVE FM-1

COQUÍ1.1.1

by saulofilho GitHub ↗

groovebox

Latin and Caribbean groovebox: synthesized congas, bongos, timbales, guiro and cowbell, 14 grooves from salsa and bomba to dembow, tumbao and montuno lines over the chord you hold, generative parts in the clave, and effect scenes from a backyard to a dub.

Text by the maker.

About it

Engines
6-op FM / DX7Analog / VASamplerPhysical modellingOrgan
Its own: PERC (22 synthesized Latin/Caribbean percussion) · VA · FM · SAMPLE · WHEEL · PHYS · PHASE
Runs on
FM-1 · Browser ↗
Release
1.1.1 · released 7 Nov 2026 · on the hub since 7 Nov 2026596 KB · what's new
Licence
GPL-3.0 · source ↗ · copy on the hub
Flash chip
Every FM-1, the newer chip 0xB36014 too
Identity
FM-1_923what it reports over USB while it runs
Build
Built by GitHub Actions from bca6c28, signed
Popular
↓ 31 installs via the hub

Family

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Changelog

What changed, version by version1 version

1.0

The first release: COQUÍ, a Latin and Caribbean groovebox firmware for the M-VAVE FM-1, built on GR!MM 2.0.2.

  • PERC: a new source of 22 Latin and Caribbean percussion instruments, synthesized on the FM-1 (no samples), on the 27 keys at any octave; kits SALSA, PERREO, BOMBA, TIPICO; TUNE, DECAY, HUMAN; its own pool of ten hits, never taking the six voices the other tracks share.
  • GROOVE: 14 styles a PERC track plays by itself on the sequencer's bars (dembow, perreo, salsa 2-3 and 3-2, son, mambo, cha-cha-chá, bomba sicá and yubá, plena, merengue, bachata, cumbia, soca), with PARTS, FILL and FEEL.
  • The lines: the ARP plays TUMBAO, MONTUNO, GUAJEO, MERENGUE and BACHATA over the chord held (one key is enough).
  • 44 factory sounds made for it, the bass and piano ones bringing their line; FM patches BRASS, PIANO, CUATRO, BASS.
  • The mood: GENERATE in the clave (NOCHE, CALLE, FIESTA); AMBIENTE scenes for the effects (SECO, QUINTAL, CALLE, PLAYA, NOCHE, DUB, RADIO AM); a night HOME screen where the coquí sings over a conga a track; a noche tropical palette and a singing boot screen.
  • Its own identity (FM-1_923) and saves (it never reads another firmware's); newer FM-1s' flash (UC25HQ80) supported.
  • The hub page and a web emulator: <https://saulofilho.github.io/coqui-fm1/>.
  • Not from GR!MM any more: the VOICE source and its choirs, GR!MM's factory sounds, the eye, webs and candles.

CHANGELOG.md on GitHub ↗