Appalachian Spring is an American ballet created by the choreographer Martha Graham and the composer Aaron Copland, later arranged as an orchestral work. Commissioned by Elizabeth Sprague Coolidge, Copland composed the ballet music for Graham; the original choreography was by Graham, with costumes by Edythe Gilfond and sets by Isamu Noguchi. The ballet was well received at the 1944 premiere, earning Copland the Pulitzer Prize for Music during its 1945 United States tour. The orchestral suite composed in 1945 was played that year by many symphony orchestras; the suite is among Copland's best-known works, and the ballet remains essential in the Martha Graham Dance Company repertoire.
Graham was known for creating the "Graham technique" of dance; in the 1930s, she began commissioning scores from various composers, often related to American history and culture. Around the same time, Copland incorporated relatable and accessible musical characteristics of the Americana style to increase his music's appeal to the general public; he first implemented this in earlier ballets like Billy the Kid and Rodeo. The initial scenario for Appalachian Spring devised by Graham was revised many times by both her and Copland; the title characters' names were changed numerous times and other characters from the early revisions were cut in the final production. Originally orchestrated for a thirteen-piece chamber orchestra, the score was arranged into various suites by Copland for different purposes; the original ballet featured eight episodes, three of which were cut in the well-known orchestral suite.