Sinfonia Concertante in E-Flat Major for Violin, Viola, and Piano, K. 364
Sinfonia concertante in E-flat major for violin, viola, and piano, K. 364 (320d). Originally for violin, viola scordatura, and orchestra. Wolfgang Amadeus Mozart. Edited by Christoph-Hellmut Mahling. Includes a supplementary part for viola tuned up a half-step. Published by Barenreiter.