Why is Aaron Copland remembered?

Aaron Copland is remembered because of his music and his influence upon musicians. He wrote several orchestral pieces celebrating America and Americans that became and remain hugely popular: "Fanfare for the Common Man," "Appalachian Spring," "Billy the Kid," "Rodeo," and "A Lincoln Portrait." His book "What to Listen For in Music" still sells thousands of copies. His style of orchestration, luminous and transparent, influenced many composers worldwide.