Contribute to m-vave/fm1_open development by creating an account on GitHub.

CS-1 turns the M-VAVE FM-1 into a CS-80-style polysynth: two channels per voice, the preset tones, the touch response, a ring modulator, chorus, delay and reverb. Free, open source, and playable in your browser.

Make Firmware, Not War: the FM-1 Firmware Hub installs every open-source custom firmware for the M-VAVE FM-1 (zp12, Felucca, SLOOP, sloopDX, X0X, FoMni, Felucca [Salt], ChoralRoot, Jangada, Melodee, Hortator, FiMba-1) with one click in Chrome or Edge, always the newest release, and switches back to the official firmware any time.