Final answer:
One of Aaron Copland's most famous ballets is Appalachian Spring.
Step-by-step explanation:
One of Aaron Copland's most famous ballets is Appalachian Spring. It was composed in 1944 for Martha Graham's dance company and is set in a rural American town in the 19th century. The ballet tells the story of a newlywed couple and their interactions with a pioneer woman and a revivalist preacher. Appalachian Spring is known for its beautiful melodies, rhythmic energy, and incorporation of folk tunes.
Copland's music for Appalachian Spring won him the Pulitzer Prize and is still celebrated today for its captivating and evocative portrayal of American rural life.