(b Czechowice-Dziedzice, 2 March 1927; d Berlin, 12 Nov. 2001). Polish composer. The start of his mature period coincided with the explosive avant-garde movement of the late 1950s. He contributed several works to the prevailing sonoristic trends in Poland (Les Sons, 1965). He is noted for his development of extended instrumental techniques (Mutanza for piano, 1968), especially for woodwind instruments (Aarhus Music, 1970). There is a rapprochement in later pieces with more traditional procedures (Little B–A–C–H Symphony, 1979).
From The Oxford Companion to Music in Oxford Reference.