From CNN:ATLANTA -- From reveille to marches to taps, music plays a vital role in the life of a soldier. One disabled Iraq veteran says he believes it may play an even more important role for wounded warriors.Paul Delacerda spent 15 years jumping out of airplanes with the Army's vaunted 82nd Airborne Division before he blew out his kornee, ending his paratrooper career. But he wasn't done serving