Biographer Howard Pollack is the author of “Aaron Copland: The Life and Work of an Uncommon Man” (University of Illinois Press). This year marks the 100th anniversary of Copland’s birth. Though Copland was Jewish, gay, and raised in Brooklyn, his work came to personify the American West, with such well known compositions as “Billy the Kid” and “Rodeo.” Copland also wrote “Appalachian Spring,” and “Fanfare for the Common Man.” Copland also wrote the film scores for “The Red Pony,” and “The Heiress.” Pollack is professor of music history and literature at the University of Houston.