Skip to content
altstrument

cldmnky drumlogue-units

Firmware for drumlogue (Korg)

Free collection of drumlogue units with a docs site, covering a Jupiter-8 style synth, a PPG wavetable synth, a modal synth, a SoundFont player and a Clouds reverb.

by Magnus Bengtsson (cldmnky)

ActiveSource: openApache-2.0
Distribution
Prebuilt image you flash yourself
License notes
The LICENSE file in the repository is the Apache License 2.0 (with the template copyright line left unfilled), but the README badge and its License section say the project code is MIT. The Mutable Instruments DSP code the ports are based on keeps its own upstream licenses, which the README notes as MIT for the STM32 code.
Source
github.com https://github.com/cldmnky/drumlogue-units
Homepage
cldmnky.github.io https://cldmnky.github.io/drumlogue-units/

Description

drumlogue-units is a repository of custom units for the Korg drumlogue by Magnus Bengtsson (cldmnky), built with logue SDK 2 and released as .drmlgunit files, one GitHub release per unit. Synth units are Drupiter (a Jupiter-8 inspired polyphonic/monophonic synth with dual DCOs, hard sync and cross-modulation), Pepege-Synth (a 2-voice PPG-style wavetable synth with 16 wavetable banks), Elementish (modal synthesis with bow, blow and strike exciters, based on Mutable Instruments Elements) and Druteus (an SF2 player built on TinySoundFont, shipped with 442 E-mu Proteus/1 factory patches). The one effect is Clouds Reverb, a reverb unit with granular texture modes based on Mutable Instruments Clouds. The README says the repository is set up for AI-assisted development with GitHub Copilot custom agents, and the tree also contains AGENTS.md and opencode.json files. Documentation, unit pages and an installation guide are on the project's GitHub Pages site.

Install notes

Download the .drmlgunit file for a unit from the GitHub releases page, put the drumlogue into USB mass-storage mode and copy the file into Units/Synths (synths) or Units/ReverbFXs (Clouds Reverb), then restart the drumlogue. The installation guide on the docs site lists the folder for each unit.

Version history

cldmnky drumlogue-units version history
VersionDate
elementish-synth v1.4.12026-10-08
elementish-synth v1.4.02026-08-10
druteus v0.1.02026-08-03
drupiter-synth v1.2.02026-02-07
pepege-synth v1.1.02026-02-07

Back to drumlogue