“Mir50” by Subheim from Tympanik Audio‘s Emerging Organisms vol. 4 compilation album.
Kostas K is Subheim and he is also the founder of the now, sadly, defunct Spectraliquid, a wonderful label that put out releases by the likes of Cardopusher, Ebola and Blackfilm. Check out my interview with Kostas and select tracks from Spectraliquid here.