Career
Olstad has been living in Oslo since 1973, when he started his musical studies at Østlandets Musikkonservatorium and University of Oslo, with a graduate thesis on the Jazz Life in Oslo at the 1980"s (1992). In Oslo he joined different jazz orchestras led by Harald Gundhus, Alf Kjellman/Ola Calmeyer, Guttorm Guttormsen, Vidar Johansen/Åsmund Snortheim, Erik Andresen, Atle Hammer, Carl Magnus Neumann, Odd Riisnæs, Christian Reim, Karin Krog, Vidar Johansen Trio including with Kåre Garnes, since 1990, Laila Dalseth/Totti Bergh Quartet, Brinck Johnsen, Merethe Mikkelsen, Sverre Kjelsberg, Magni Wentzel, Kjell Karlsen and Paul Weeden. Olstad has collaborated in bands like Støff, Søyr, Python, Ab und Zu, Winds Hot & Cool and Radiostorbandet.
He has also played with international greats such as Art van Damme, Art Farmer/Kenny Drew, Benny Bailey, James Moody, Eddie Harris.
His first solo album was Changes for Mingus (2007) comprising original compositions inspired by bassist and bandleader Charles Mingus.