Copland, Aaron. “The Composer in Industrial America.” In Music and Imagination: The Charles Elliott Norton Lectures, 1951--1952, 96--111. Cambridge, United Kingdom: Harvard University Press, 1952.
Chase, Gilbert. “Ives and American Culture.” In An Ives Celebration, edited by H. Wiley Hitchcock and Vivian Perlis, 3. Urbana, IL: University of Illinois Press, 1977.
Bernstein, Leonard. “The Absorption of Race Elements into American Music.” In Findings: Fifty Years of Meditations on Music, 36-99. New York, NY: Doubleday, 1982.
Beal, Amy. New Music, New Allies: American Experimental Music in West Germany from the Zero Hour to Reunification. Berkeley, CA: University of California Press, 2006.
Beal, Amy C. 2003. “The Army, the Airwaves, and the Avant-Garde: American Classical Music in Postwar West Germany.” American Music 21, no.4 (Winter): 474-513.