A symphony of Three Orchestras was dedicated to someone who died 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.
Julien Paul Blitz Julien Paul Blitz (May 21, 1885 – July 17, 1951) was an American cellist, conductor, and teacher. He was the first music director of the Houston Symphony.