sentences:  Self-taught as an orchestrator, for his first professional project Kay orchestrated several songs for Brazilian soprano Elsie Houston's show at the Rainbow Room in 1940.When Leonard Bernstein commissioned Kay to orchestrate his musical comedy "On the Town" in 1944, Kay became one of the most sought after orchestrators on Broadway.Later collaborations with Bernstein include "Peter Pan" (1950) and "Candide" (1956).