nostr:npub1njst6azswskk5gp3ns8r6nr8nj0qg65acu8gaa2u9yz7yszjxs9s6k7fqx 

Sound like the guy has a modular synth setup, expensive but they just make noises for hours like this.
IMG_2368.jpeg

https://annihilation.social/media/2282990d-72ef-47a5-9fda-4cbe24b58873/IMG_2368.jpeg?name=IMG_2368.jpeg