Fluyt
Firmware for microKORG2 (Korg)
Nine engines from Felucca, the open M-VAVE FM-1 firmware, ported to the microKORG2 as user oscillator units that play inside the instrument's own voice, filter and envelopes. Also built for the drumlogue.
- Distribution
- Prebuilt image you flash yourself
- Requires stock
- 2.0.0 or later (logue SDK 2.1.0 units)
- License notes
- Build scripts are MIT; the units use the logue SDK's dummy-osc Makefile (BSD-3-Clause, KORG); the FM6 core is an msfa/Dexed port (Apache-2.0). See docs/LICENSING.md.
- Source
- github.com https://github.com/rgrvmusic/fluyt-logue
- Homepage
- rgrvdotnl.itch.io https://rgrvdotnl.itch.io/fluyt-logue
- synth-engine
- oscillator
- fm
- formant
- organ
- logue-sdk
Description
The same nine Felucca engines as the drumlogue build (ANALOG, TRIO, PHASE, LOFI, WHEEL, NOISE, FORMANT, DRUM and the six-operator FM6), each as an osc module shown on the eight-character display as F-ANALOG, F-TRIO and so on, with 13 parameters over four pages and Felucca's presets. The unit renders one lane per voice and follows the instrument's pitch, so bend and glide come from the microKORG2; level, pan, envelope, filter and amp are the instrument's. Felucca is included unmodified at v1.0.2 with tables regenerated for 48 kHz; NOISE, FORMANT and FM6 envelopes run about 8.8% off because three constants in Felucca's source stay at 44.1 kHz. Sample-based engines and PHYS are not ported.
Install notes
Download the prebuilt units from the itch.io page (name your own price, free allowed) or build them with build-microkorg2.sh. Hold the first option button while powering on to enter USB mass storage mode, copy each .mk2unit into a SlotN folder under Units/Oscs, then choose the oscillator (F-ANALOG and so on).
Version history
| Version | Date | Notes |
|---|---|---|
| v0.9 | 2026-10-12 | Initial release. |