Serge Koussevitzky
Leonard Bernstein's Sonata for Clarinet and Piano, written during 1941–42 and published in 1942, was Bernstein's first published piece. It is dedicated to clarinetist David Oppenheim, whom Bernstein met while studying conducting with Serge Koussevitzky at Tanglewood during the summers of 1940 and 1941.