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.
Frederick Charles Adler Frederick Charles Adler (usually known as F. Charles Adler) (born on 2 July 1889 in London and died 16 February 1959 in Vienna) was an English-German conductor.