Clarinet in A and piano
The Concerto for Clarinet and Orchestra was written in October 1791, about two months before Mozart's death, and destined for Anton Stadler, the famous clarinetist. The first movement exists in a sketch in G major for Basset Horn and Orchestra composed towards the end of 1789. This edition has been published in two versions: in the original in A for Clarinet in A, and in a transposed version in B-Flat for Clarinet in B-Flat. Available here is the version for Clarinet in A, with Piano reduction by by Ernest Roth and Clarinet arrangement by Frederick J. Thurston.