1956, he continued publishing music and taught at various universities in New York, especially the Institute of Musical Art and Ithaca College. In 1957, he was called before the House Un-American Activities Committee, which was the investigation of communism in the musical world. In 1958, Leonard Bernstein honored him with the direction of his music for orchestra with the New York Philharmonic Orchestra. He died in New York in 1961, when he triggered the lines of two fighting dogs, which in a shrinking and...
http://www.youtube.com/watch?v=qwmOwB2HkkU&hl=en