Æthenor is the international improvisational project of Stephen O’Malley (Sunn O))), KTL) Daniel O’Sullivan (Ulver) Kristoffer Rygg (Ulver, Arcturus) and Steve Noble (N.E.W., Company, etc) – a key member of the British Free Jazz Improvisation scene. Their latest release ‘En Form For Blå’ documents the continued evolution of this unlikely collective, a collision of players from various avant, improv, metal, and “other” threads who together make a unique and arresting sound.