Which Aaron Copland ballet is set in rural Pennsylvania and depicts American pioneers?

The correct answer is Appalachian Spring. This ballet, composed by Aaron Copland in 1944, is particularly notable for its depiction of life in rural America, specifically focusing on themes associated with American pioneers. The narrative centers around a young couple's wedding celebration in the early 20th century, capturing the simplicity and beauty of their environment, as well as the spirit of resilience and community that characterized pioneer life in Pennsylvania.

Appalachian Spring is effective in conveying these themes through its rich orchestration and distinctive folk-inspired melodies, showcasing Copland's unique ability to blend modern classical techniques with distinctly American musical elements. The ballet unfolds in a pastoral setting that evokes the landscape and lifestyle of early American settlers, making it a quintessential reflection of American cultural identity and the themes of hope and perseverance inherent in pioneering life.

On the other hand, Rodeo explores themes of cowboy life and romance, while Billy the Kid narrates the story of the famous outlaw, and Gaslamp Variations is a later work with a different focus, thus they do not fit the specific context of rural Pennsylvania and American pioneers.