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.
Paul Breisach Paul Breisach (June 3, 1896 – December 26, 1952) was an Austrian-born conductor. He was a pupil of Heinrich Schenker in Vienna from October 1913 for several years. "New Grove 2" reports that he was a conductor at the Deutsche Oper Berlin in the early 1930s until he emigrated. He conducted at the Metropolitan Opera from 1941 through 1946, and he was a staff conductor at the San Francisco Opera during the 1940s until his death.