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The Firmware Hub · FM-1 · J6

J6 for the M-VAVE FM-1

J61.4.0

by JackieAlacrity2373 GitHub ↗

synthvintage

A six-voice JUNO-60 style polysynth with chorus, arpeggiator and a 16-step recorder. 56 factory sounds, a MIDI control for every knob, and a free browser editor that plays it over USB-MIDI.

Text by the maker.

About it

Engines
Analog / VA
Its own: JUNO-60 style polysynth
Runs on
FM-1
Release
1.4.0 · released 29 Oct 2026 · on the hub since 27 Oct 2026597 KB · what's new ↗
Licence
MPL-2.0 · source ↗ · copy on the hub
Flash chip
The first FM-1s onlyOn a newer FM-1 (flash 0xB36014) this version keeps your saves in RAM only, and updates from it may fail: what to do
Identity
FM-1_66010400what it reports over USB while it runs
Build
Built by GitHub Actions from 36f033f, signed
Popular
↓ 135 installs via the hub · ★ 3 on GitHub

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