He was in the middle of recording sessions with the band Treponem in Geneva, when he passed away in his sleep on Saturday.

Although best known for his work with post-punk/industrial band Killing Joke, Raven also appeared with Ministry, Godflesh, Prong, Pigface, Murder Inc, Amen, The Neon Hearts and Kitsch over the course of a long career.

Killing Joke's Jaz Coleman was reported as saying: "We are all deeply stricken with grief at the unannounced departure of possibly the funniest man on planet Earth and a brother to us all."