Joan Peyser wrote a biography of a French composer who was born in what year?
Pierre Boulez Pierre Louis Joseph Boulez CBE (] ; 26 March 1925 – 5 January 2016) was a French composer, conductor, writer and organiser of institutions. He was one of the dominant figures of the post-war classical music world.
Isidor Philipp Isidor Edmond Philipp (first name sometimes spelled Isidore) (2 September 1863 – 20 February 1958) was a French pianist, composer, and pedagogue of Jewish Hungarian descent. He was born in Budapest and died in Paris.