bark! BARK! is the longstanding British improvised music group formed by Rex Casswell and Phillip Marks in Manchester in 1991. After several different earlier line-ups, Paul Obermayer joined to form the current trio of guitar, percussion and electronics in 1999. Tracks are: 121 days of Sodom, the underpants of Dorian Gray Celibacy: 1992 spanners, Mr Pointy contraption: 2007 fume of sighs, zodiac fume of sighs: 2012 Grus swing: 2001 Users who are followed by bark!