Reading Rainbow, the Buchla synth’s “MARF,” and a prototype’s live debut

Hold on for a wormhole between different nerd universes. Steve Horelick, the prolific composer behind the music for Reading Rainbow, meets the classic Buchla 200, meets a new prototype of an official recreation of the Multiple Arbitrary Function Generator (MARF). Also, Star Trek. Let’s explain what those things are for those who don’t know — and talk about how you can join a special event live online.

Grayscale Nexus expands on Mutable’s keyframing – free now in VCV Rack

Mutable Instruments’ Frames had one of Émilie’s best and most underrated ideas: apply keyframing, as in animation and motion, to modular control. Now, Grayscale Modular is developing that concept with 12 channels and more control. It’s available for $399 as hardware, or you can try it right now in VCV Rack for free.

Peter Kirn - June 9, 2025

Xer Mixa mixer update: hex and quad sound, synced mutes, more

Hot on the heels of our in-depth review of the expansive Noise Engineering Xer Mixa, the folks at NE have a beta update with lots of new features. And that includes the ability to use quadraphonic and hexaphonic outputs for immersive panning.

Peter Kirn - December 15, 2023