The 'Sonata for Clarinet and Piano' was Bernstein's first published composition. Sources for this new revised edition were Bernstein's pencil manuscripts of the clarinet and piano score, as well as the separate clarinet part. Every detail of the sonata has been carefully prepared and reconsidered. The enharmonic note spellings in the clarinet part are different from the previous edition of the sonata and are likened more closely to that of the first published edition. The result is a fresh look at one of the most important and beloved pieces of twentieth century clarinet repertoire.