(b Amsterdam, 1925).
Dutch violinist and teacher. Début Holland 1949. Leader, Hilversum Radio Chamber Orch. 1950–63. Member of Netherlands Str. Qt. 1952–69. Founded Quadro Amsterdam, 1962, and Quartetto Esterházy, 1971, which played on period instrs. (disbanded 1981). Leader, Academy of Ancient Mus., London, for a time. Prof. of vn., Amsterdam Cons.