(b Bandoeng, Java, 1907; d Vijlen, 1987).
Dutch composer. Taught at Rotterdam Cons. from 1934; co‐dir. Amsterdam Lyceum 1937–41; dir. Hague Cons. 1941–5; dir. EMS, Utrecht Univ., 1960–4; Prof. of comp. Musikhochschule, Stuttgart, 1962–72. Comps. incl. several operas and 14 syms., 25 concs., chamber mus., and elec. works. His sonata No.2 for 2 vn. (1963) is in 31‐note scale and his ballet Genesis (1968) for 5 tone‐generators.