[2002[: 11-31. Kooij, Hans Eduard. "COMPOSITION BY USE OF GERM CELLS- A Botanical-Musical Analogy in the Willem Pijper Sonata for Piano". Tijdschrift van de Koninklijke Vereniging voor Nederlandse Muziekgeschiedenis. Volume LIV-2, 2004: 119-131 1894 births 1947 deaths 20th-century classical composers 20th-century Dutch male musicians Academic staff of the Conservatorium van Amsterdam Composers for carillon Dutch classical composers Dutch male classical composers Dutch music critics Dutch opera composers Male opera composers People from Zeist