Rhythmer0.1.1-beta3 · beta

Name: Rhythmer
Author: Jazzy Rhythmer

grooveboxbeta

A hands-on groovebox firmware for the FM-1. Shape sounds, build patterns, and find your own groove. Up to six assignable tracks, sound design, sequencing and performance. Free and open source, built on JIANT and reworked by Jazzy Rhythmer.

Text by the maker.

Install on its page ↗ .fwsc (809 KB)

About it

Runs on: FM-1 · Browser ↗
Release: 0.1.1-beta3 · released 7 Nov 2026 · on the hub since 9 Nov 2026809 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_748005what it reports over USB while it runs
Build: Built by its maker, not signed
Popular: ★ 13 on GitHub

Family

Built on

JIANT FMby juanjiant-bit

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Changelog

What changed, version by version2 versions

0.1.0-beta.2 - 2026-11-07

Fix SEQ piano-roll register following and stopped-view redraws. Current notes remain visible when changing tracks/bars or editing pitches.
Publish a 36-second Rhythmer OS film with all 12 model UI animations, simultaneous Acid/Break pages and an Amen section.
Keep both embedded Break banks, DSP, project format and update loader unchanged.
Distinguish this candidate’s host/emulator checks from the earlier beta.1 owner hardware report.

0.1.0-beta.1

Initial public beta. See its release notes and exact-package hardware report on the v0.1.0-beta.1 tag.

CHANGELOG.md on GitHub ↗