- The Metropolitan Opera Orchestra, Giuseppe di Stefano & Alberto Erede
- Carlo Bergonzi
- 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
- Lucia Popp, Brigitte Fassbaender, Werner Krenn, Tom Krause, Manfred Jungwirth, Vienna Haydn Orchestra & István Kertész
- Franco Corelli
- Dame Joan Sutherland