Beads, last of the Mutable Instruments modules, is now open source

Beads, the granular “texture synthesizer” that was Emilie Gillet’s follow-up to the legendary Clouds, is now fully open source. That completes the final missing piece in open-source code and free licensing for Mutable Instruments’ iconic and influential range of Eurorack modules.

Spring cleaning: free up space by deleting duplicate plug-ins

It turns out you don’t need VST2 and AU and AAX and CLAP versions of the same plug-in. Here’s a free, fast command-line tool that gets rid of them in a hurry, with options for particular configurations, on macOS.

Peter Kirn - April 27, 2026

Elastic OSC, Plaits as an instrument app, now supports Android, MPE

Oliver Greschke’s Elastic OSC continues to blossom as a mobile instrument. Packed with open-source algorithms from Mutable Instruments’ Plaits as oscillators, Elastic OSC has added powerful modulation and now supports Android and MIDI Polyphonic Expression.

Peter Kirn - March 26, 2026