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 Stock Frederick Stock (born Friedrich August Stock; November 11, 1872, Jülich, Rhine Province – October 20, 1942, Chicago, Illinois) was a German conductor and composer, most famous for his 37-year tenure as music director of the Chicago Symphony Orchestra.