 The movies also soared in popularity during the 1930s and 1940s, and with them came classic scores and songs by new ASCAP members like Harold Arlen, Johnny Mercer, Cole Porter, Morton Gould, and Jule Styne.Classical-music composers Aaron Copland, Igor Stravinsky, and Leonard Bernstein brought their compositions into the ASCAP repertory in the 1940s.The rise of rock and roll derived from both country music and rhythm and blues music caused airplay of BMI licensed songs to double that of ASCAP licensed songs.