Bastl’s Kastle 2 and Citadel Eurorack are now DIY kits, open source platforms

It started with Kastle 2, Bastl Instruments’ cute and clever handheld. It could be a multi-effect, a sample player, a synth. Then Citadel modules came along and did those things in Eurorack. Now, Bastl’s got a surprise: you can buy these as DIY kits, and a big chunk of the Raspberry Pi-powered platforms are being released as open source. Here are all the details.

Get dark and strange with this free GodHatesGodRecords compilation

Out of Belgium, there’s a murky, forbidding free underground netlabel that has survived from another era. It’s aggressively anti-algorithmic, soul-chillingly dark in its aesthetics, and committed to free culture and commons like if social media and AI never happened. And it’s perfect for a frozen European night, wherever you might be.

Peter Kirn - January 10, 2026

Freesound, massive shared sounds library, turns 20 with talks and listening

Who says the internet is dead? Not Freesound, the massive, community-run, fully free and open library of sounds from birdsong to samples. This incredible repository turns 20 years old today, and they’re celebrating with talks and a listening session. That includes organizer discussions of how to cope with AI and keep users’ needs central, and […]

Peter Kirn - October 28, 2025

Three years of solar flares transformed into music: ESA x Maple Pools

Peter Kirn - January 15, 2025

Add a free video player to your Ableton Live set with modulation, FX

Peter Kirn - June 4, 2024

Free sounds and samples in Ableton Live, powered by commons and community

Peter Kirn - August 7, 2020

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