Greylevel are a progressive rock band from Vancouver, Canada which was formed by Derek Barber in 2001. While broadly falling in the progressive rock genre, their music is also associated with both psychedelic rock and art rock with influences as diverse as Pink Floyd, Talk Talk, Peter Gabriel, Arvo Pärt and Porcupine Tree.The band initially began as solo music project for Barber, who played keyboards, bass, guitars and sang lead vocals.