Victoria de los Ángeles, Giuseppe di Stefano, Coro e Orchestra Opera di Roma, Gianandrea Gavazzeni, Anna Maria Canali, Maria Huder, Tito Gobbi, Renato Ercolani, Bruno Sbalchiero & Arturo La Porta
Majella Cullagh, Victorian Opera Orchestra, Richard Bonynge, Matt Mears, John Ieuan Jones, Lucy Vallis, Stephanie Maitland, Edward Robinson, Patrick Relph, Michael Vincent Jones & Sebastian Maclaine
Beniamino Gigli, Orchestra del Teatro alla Scala di Milano, Umberto Berrettoni, Studio Orchestra, Rina Gigli, Bruno Seidler-Winkler, Prussian State Cappella Orchestra, Rainaldo Zamboni, Orchestra of the Royal Opera House, Covent Garden, Studio harpist, Vito Carnevali, Philharmonia Chorus, Stanford Robinson, Philharmonia Orchestra, Milan Symphony Orchestra & Argeo Quadri