What is "supersilent"

Supersilent is a Norwegian avant-garde-improvisational music group formed at Nattjazz in Bergen in 1997 when the trio Veslefrekk was asked to play with Deathprod. The meeting of experimental jazz groups with Helge Sten's rumbling drones and noise was so successful that the quartet Supersilent appeared. That same year, their triple debut album 1-3 was released as the first release on the record label Rune Grammofon. The band attracted attention with their aggressive combination of improvised jazz, frirock and noise blowouts. They are known for making only improvised music and for the distinctive uniformity of their album covers.