Award-winning and influential composer, teacher, writer, critic and conductor known for his "populist" compositions archetypical of the sound of American music, wrote chamber music, vocal works, opera and film scores, including "Fanfare For The Common Man" and "Hoedown" in the 1940s, both of which were interpreted by prog-rock Emerson, Lake & Palmer in the 1970s, died from Alzheimer's disease and respiratory failure on 12/2/1990, age 89
