Born 14 May 1931 in Iserlohn, Germany.
Died 22 August 2017.
He was married to Gisela Saur-Kontarsky. Since the 1950s, together with his brother Alfons Kontarsky, he had been an early participant and later a teacher at the 'Internationalen Ferienkurse für Neue Musik in Darmstadt'. They both have premiered and recorded contemporary and avantgarde music such as the works of Karlheinz Stockhausen. His youngest brother is Bernhard Kontarsky.