He also conducted broadcast performances of Copland 's `` El Salón México '' ; Gershwin 's `` Rhapsody in Blue '' with soloists Earl Wild and Benny Goodman and `` Piano Concerto in F '' with pianist Oscar Levant ; and music by other American composers , including marches of John Philip Sousa .
He also conducted broadcast performances of Copland 's `` El Salon Mexico '' and Gershwin 's `` Rhapsody in Blue '' with soloists Earl Wild and Benny Goodman and `` Concerto in F '' with pianist Oscar Levant , as well as music by other American composers , including two marches of John Philip Sousa .