...p. 233. 5. Aaron Copland, The New Music, 1900-1960 (New York, WW Norton, 1968), pp. 151, 153, 60. 6. Aaron Copland, What to Listen for in Music (New York, McGraw-Hill Book, 1939), p. 16. Copland, New Music, p. 99. 7. Aaron Copland, Music and Imagination (Cambridge, Mass.,...