This is true for most top drum & bugle corps since the beginning. Play ANY recording (even songs not generally associated with the corps) from the 1955-1967 Blessed Sacrament Golden Knights, Garfield Cadets, St. Lucy's Cadets, St. Kevin's Emerald Knights, Chicago Royal Airs, Chicago Cavaliers, Casper Troopers, Hawthorne Caballeros, and New York Skyliners and I (and most others my age) will identify the corps from their sound. I feel I can recognize Blue Devils 1978 -1983 and Blue Devils 2013 - 2017....... but I don't know other current DCI or DCA well enough to do the same....