Liquid Tension Experiment is an instrumental progressive rock / metal project initiated by Dream Theater drummer Mike Portnoy. Band Members · Mike Portnoy (Dream Theater) - drums · John Petrucci (Dream Theater) - guitars · Jordan Rudess (Dream Theater) - keyboards · Tony Levin (King Crimson) - basses History Mike Portnoy invited Jordan Rudess (keyboard) and progressive rock icon Tony Levin (bass, Chapman Stick) of King Crimson and Peter Gabriel's band to join him. In his instructional video "Liquid Drum Theater", Portnoy said that his first choice for the guitar was the late Dimebag Darrell, but he was unable to join because of conflicting schedules. Two other primary choices, Steve Morse (Dixie Dregs, Kansas, Deep Purple) and Jim Matheos (Fates Warning) were also unavailable. Portnoy then turned to