Bill Champlin, Bill Schnee, Bobby Gerber, Britt Bacon, Chip Strader, Chris Pinnick, Danny Seraphine, David Foster, David Paich, David Schober, Don Levy, Ernie Sheesely, Gerard Vinci, Humberto Gatica, Jack Goudie, James Pankow, Jeff Borgeson, Jeremy Lubbock, Lee Loughnane, Michael Landau, Peter Cetera, Phil Jamtaas, Robert Lamm, Steve Cohen, Steve Lukather