Tom Dissevelt (1921 - 1989) was a Dutch jazz musician and electronic music pioneer. His mixture of jazz and experimental electronics is most widely-known in the soundtrack for the Oscar-winning short film "Glas" (1958). During the war years Dissevelt studied at the Royal Conservatory in The Hague. In 1955 he was hired as a bass player and arranger for the Dutch jazz orchestra The Skymasters. During this time he became interested in 12-tone serialism and listened often to the German radio, where he heard the music of Karlheinz Stockhausen and Anton Webern.