 He became a well-known conductor on stage and on air, and in 1946 initiated the Carnegie Hall "Pops" concerts with members of the New York Philharmonic.In 1947 he played the role of Tchaikovsky in the film "Carnegie Hall", conducting the film score as well.He was guest conductor with, among others, the Buffalo Symphony Orchestra, the Miami Symphony Orchestra, the Saint Louis Symphony Orchestra and the NBC Symphony of the Air.