Physical modeling, modular explorations with Adam Pietruszko and AAS’ CV-3

Those sprawling synths are great, but when it comes to exploring a sound design idea compositionally, there’s nothing quite like a modular patch. I’ve long admired Adam Pietruszko’s work for AAS, so it’s a treat to watch him break down a patch and hear what he did on Rotors, bringing those leftfield sounds to dancefloor contexts.

MPE meets modular, strings: AAS Multiphonics CV-3, Osmose, Soliste

Multi-dimensional polyphonic expression, connecting gestures underneath your fingers, finally makes the full range of sound synthesis something you can feel. You might even want to practice, like when you first discovered instruments. Let’s take a quick break and look at some examples featuring AAS’ Multiphonics CV-3 and Osmose, for MPE plus modular, then a bonus round with Osmose and Soliste, for string lovers.

Peter Kirn - September 29, 2025

The making of Sequential’s all-analog, polyphonic, expressive Fourm

Sequential’s new Fourm is a 4-voice polysynth with an all-analog signal path and polyphonic aftertouch and a price under a grand. To pull it off, Sequential designed an all-new expressive keybed and adapted their signature analog circuitry from the Prophet-5 (and Prophet-10). I spoke to Sequential about their instrument and the engineering that made it all happen.

Peter Kirn - September 23, 2025

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