Cosmo Barbaro has been affiliated with a number of the best-known corps in upstate New York, and several in other areas. At various times, he was associated with Geneva Appleknockers, Auburn Purple Lancers, Rochester Crusaders, Rochester Empire Statesmen, Dutch Boy, of Kitchener/Waterloo, Ontario, Connecticut Hurricanes and Chicago Cavaliers. He has served as a judge with Drum Corps International (DCI) and Drum Corps Associates (DCA), the All American Judges Association, the Pennsylvania Federation of Judges and Central States Judges. He is a past president of the Percussive Arts Society, and has served as a clinician and endorser with Ludwig Drums.
