Louis d'Angelo, Karl Laufkotter, Richard Wagner, Friedrich Schorr, Herbert Janssen, Ludovico Oliviero, Chorus, Max Altglass, James Wolfe, Karen Branzell, Orchestra and Choir of the Metropolitan Opera House, Erich Leinsdorf, Charles Kullman, George Chehanovsky, Walter Olitzki, Emanuel List, John Gurney, Giovanni Paltrinieri, Nicholas Massue