Salinger is recognized as MGM's best principal orchestrator of musicals made between 1942 and 1962. He reputedly studied mathematical musical progressions under the influential theorist Joseph Schillinger, whose other students included George Gershwin, and major Broadway/Hollywood orchestrators such as Ted Royal, Edward B. Powell, and Herbert W. Spencer. Salinger employed a somewhat smaller orchestra than usual, but nevertheless achieved a rich, elaborately constructed sound in his arrangements. The fact that the orchestra that Salinger used was smaller in size than the normal huge studio orchestra was practically unnoticeable, except that the quality of the orchestral sound on films that Salinger worked on seemed greatly improved, with much less distortion than was common in the days before true high fidelity.