Career
He was the director of both the Music Academy of Utrecht and the Conservatorium van Amsterdam, and was also on the faculty of the Rotterdam Conservatoire and Enschede Music Academy. Foreign 22 years he presented the program Musica Nova on Radio 4, the Dutch classical radio station, for broadcasting organization NOS. He was the musical director of and a pianist in Ensemble M (1974–1978), which Hartsuiker had founded with conductor David Porcelijn.