Aaron Copland was a prominent American composer known for blending classical and folk styles to create uniquely American music. Born in 1900, he studied in Paris with Nadia Boulanger and incorporated elements of jazz and American folklore into his compositions. Copland's works like "Appalachian Spring" and "Fanfare for the Common Man" are celebrated for their accessibility and patriotism. He also influenced generations of composers as a teacher and conductor. Copland passed away in 1990, leaving behind a rich legacy in American music.