The Short Symphony, or Symphony No. 2, is a symphony written by the American composer Aaron Copland from 1931 to 1933. The name derives from the symphony's short length of only 15 minutes. The work is dedicated to Copland's friend, the Mexican composer and conductor Carlos Chávez. The symphony's first movement is in sonata-allegro form, and its slow second movement follows an adapted ternary form. The third movement resembles the sonata-allegro but has indications of cyclic form. The composition contains complex rhythms and polyharmonies, and it incorporates the composer's emerging interest in serialism as well as influences from Mexican music and German cinema. The symphony includes scoring for a heckelphone and a piano while omitting trombones and a percussion section. Copland later arra