Modular Profile: Sebastian Hastrup

Eponymous founder of Swedish company Sebsongs, Malmö’s Sebastian Hastrup has burst onto the Eurorack scene in recent years with a slew of gorgeously minimal, modestly sized and functionally named modules, from the wildly creative 12‑bit digital Sampler to the brilliantly designed Polyseq flexible step sequencer. His latest module, the Bread & Butter, takes the hallowed sounds of General MIDI and implements them into your modular system with equal parts irony and sincerity.

On his entry into modular

I’ve had an interest in music and electronics for as long as I can remember — my first serious DIY projects were stripboard guitar pedals based on any designs and schematics I could find online. When I eventually discovered modular synths it seemed obvious that it would be my thing as well. I started building DIY YuSynth 5U modules back in 2013. I had circuit boards made and sourced all components manually. I instantly fell in love with the process! The idea for my module Polyseq was actually born already back in 2014 and that was also my first venture into the Eurorack format, as I realised that the Polyseq could be a commercially viable module and Eurorack was the most popular format already back then.

On his go‑to modules (aside from his...