Erich Leinsdorf, Ezio Flagello, George Shirley, John McCarthy, Judith Raskin, Leontyne Price, Philharmonia Orchestra, Sherrill Milnes, Tatiana Troyanos, The Ambrosian Opera Chorus & Valda Aveling
Studio Chorus, Lawrence Tibbett, Studio Orchestra, Studio Pianist, Alexander Smallens, Stewart Wille, Wilfrid Pelletier, The Metropolitan Opera Orchestra, Richard Crooks, Mark Andrews, Kirsten Flagstad, Lauritz Melchior, Karin Branzell, Eugene Goosens, George Cehanovsky, John Engelman, Giovanni Paltrinieri, Gennaro Papi, Nicholas Massue, Ettore Panizza, Artur Bodanzky, Susanne Clemens, Gabor, Wolfe, Alfred Newman, Earl Covert & Zaruhi Elmassion
Tracy Dahl, Toronto Mendelssohn Choir, Mario Bernardi, Toronto Symphony Orchestra, Isabel Bayrakdarian, Catherine Robbin, Michael Schade, Russell Braun, Richard Bradshaw, Brett Polegato, Jean Stilwell, Robert Pomakov, Gino Quilico, Richard Margison, Adrianne Pieczonka, Measha Brueggergosman, James Westman, Frances Ginzer & Ben Heppner