Long before achieving fame with West Side Story, Leonard Bernstein wrote many pieces of chamber music. His enchanting early composition Piano Trio is full of references to different styles. His Sonata for clarinet and piano is clearly a precursor of West Side Story. The rhythmic elements make this music very lively and energetic. Tmesis Ensemble comes full circle with compositions by Bernstein’s sources of inspiration (Gershwin, Copland and Barber).