Alfred Wallenstein was a cellist with the Los Angeles Philharmonic Orchestra in 1919, Music Director for the Los Angeles Philharmonic Orchestra from 1943-1956, and Music Director at the Hollywood Bowl from 1952-1956. In Chicago, he developed the first commercially sponsored classical concert series on radio. While at the LAPO, he nearly doubled the number of yearly concerts (inaugurating broadcasts over NBC and the Pacific network), created a "Symphonies for Youth" series, made numerous recordings, established a pension fund for his players, and frequently took the orchestra on the road, including a ten-week U.S. State Department trip to the Orient. During his initial season in Los Angeles, no fewer than sixteen works were given their Los Angeles premieres. By the time he left in 1956, at least forty-seven American composers (Samuel Barber, Aaron Copland, Henry Cowell, Paul Creston, David Diamond, Morton Gould, and Virgil Thomson among them) had received performances of major works, transforming the orchestra's repertoire and the concert experience in Los Angeles.