the orchestra calls for 2 flutes (one doubling on piccolo), oboe, 2 clarinets, 2 bassoons, 3 horns, trumpet, trombone, timpani, harp, and a string section of 4 cellos and 3 double basses. this orchestration is uniquely interesting due to its lack of violins and violas which benefits the composition by making it easier for the solo viola to be heard.