Richard Barbieri (keyboard), Chris Maitland (drums), and Colin Edwin (bass) joined Porcupine Tree after releasing the group's second album named Up the Downstair. Bandmembers produced such albums as The Sky Moves Sideways, Signify, Spiral Circus, Coma Divine, Stupid Dream, Lightbulb Sun, Recordings, In Absentia, Warszawa and Deadwing.
