Ulf Lundell | Ulf Kristersson | Ulf Schirmer | Ulf Pilgaard | Ulf Herman | Ulf Hannerz | Ulf Grenander | Ulf Ekman | Ulf Ekberg | Ulf-Dietrich Reips | Ulf Dageby | Ulf Malmros | Ulf Lundin | Ulf Långbacka | Ulf Kjell Gür | Ulf Johansson | Ulf Fase | Ulf Andersson | Sandnes Ulf |
William-Olsson was after classical piano studies at Göteborg Musikhögskola (he is autodidact guitarist), the replasement for Ulf Wakenius in the Swedish fusion band Hawk on Flight, and also collaboraterd with such as Bob Berg, Lee Konitz and Palle Mikkelborg.