Only four years before I learned to play the trumpet…the first great jazz orchestra was formed in New Orleans by a cornet player named Dominic James LaRocca. They called him “Nick” LaRocca. His orchestra had five pieces, but they were the hottest five pieces that had ever been known before. LaRocca named this band “The Old Dixieland Jazz Band.” He had an instrumentation different from anything before—and instrumentation that made the old songs sound new…They all came to be famous player...