Raised in Ełk – Szyba, Cyd has been creating music under various aliases since around 2001, but his current profile has been revealed around 2015. Cyd is mainly releasing full albums which contain various eclectic electronic music, but also EP’s focused on Techno, House or industrial.

He is a co-owner of @solemnerecords which he maintain with Matt Flack and Clefomat who has released many EP’s in collaboration with cyd.
On stage Karol Kaźmierzewski aka Cyd, is usually performing as a live-act or hybrid. Karol is taking part in various projects as a producer with vocalists and rappers as well.