Helen Olheim, The Metropolitan Opera Chorus, Lucielle Browning, The Metropolitan Opera Orchestra, Wilfrid Pelletier, Irra Petina, George Cehanovsky, Lily Pons, Nicholas Massue, Armand Tokatyan, Annamary Dickey & Ezio Pinza
Vienna Friends of Music Society, Herbert von Karajan, Eugenia Ratti, Oliviero de Fabritiis, Arnold Mill, Cornell MacNeil, Giulietta Simionato, Carlo Bergonzi, Fernando Corena & Renata Tebaldi