This composer of the ballet "Rodeo" scored an Oscar for his score from "The Heiress"
[DOC] [TLE] Aaron Copland's Compromised Score to THE HEIRESS [PAR] With his scores to Of Mice and Men (1939) and Our Town (1940), he created a 
new ... His trio of ballets, beginning with Billy the Kid (1938) and Rodeo (1942), ...