Benny Goodman even to use new fingering techniques. He had his old finger calluses removed and started to learn how to play his clarinet again—almost from scratch." Goodman commissioned compositions for clarinet and chamber ensembles or orchestra that have become standard pieces of classical repertoire. He premiered works by composers, such as "Contrasts" by Béla Bartók; "Clarinet Concerto No. 2, Op. 115" by Malcolm Arnold; "Derivations for Clarinet and Band" by Morton Gould; "Sonata for Clarinet and Piano" by Francis Poulenc, and "Clarinet Concerto" by Aaron Copland. "Prelude, Fugue, and Riffs" by Leonard Bernstein was commissioned for Woody Herman's big band, but
Fletcher Henderson them together. After about 1931, his own arrangements became influential. In addition to arrangements for his band, he wrote arrangements for Teddy Hill, Isham Jones and Benny Goodman. He injured his shoulder in an auto accident in 1928. His wife, Leora, blamed the accident for his diminishing success. She said that John Hammond and Benny Goodman bought Henderson's arrangements to support him, that Goodman always gave Henderson credit for the arrangements and said that he played them better than his own. In addition, Goodman and Hammond organized broadcasts and recordings to help Henderson when he was ill. Four decades later,