Katsuya Urushizaki began DJing and performing live during his time studying graphic design at Camberwell College of Arts in London. He quickly caught the attention of fellow musicians and event organizers who asked him to play at clubs in Brixton as well as local festivals and warehouse parties. He soon began producing music of his own which he categorizes as dub, although there are also strong minimal techno influences in his work. Starting in 2005 he released tracks on several 12" compilations released by London's record label under the alias Katzo. In 2006 his full length debut album, Disposition, released through Italian label, featured ten tracks credited to his own name. Also released under his own name was his internationally distributed EP for the record label in Holland.