Dutch musician and flautist who is best known for heading the progressive rock band Focus. He also plays whistles and can yodel.
He received his first flute from his father at age eleven and he studied History of Art at Amsterdam University.
In the 1970s his band had two Gold records with Moving Waves and Focus III, which spawned the international hit singles "Hocus Pocus" and "Sylvia." He was made a Knight of the Order of Orange-Nassau in 2010.
He has a daughter named Berenice with his wife Thea.
He recorded several international hits with Jan Akkerman.