Julius Patzak, Kirsten Flagstad, Elisabeth Schwarzkopf, Paul Schoeffler, Josef Greindl, Anton Dermota, Hans Braun, Hermann Gallos, Ljubomir Pantscheff, Vienna Philharmonic, Chorus of the Vienna State Opera & Wilhelm Furtwängler
Renata Tebaldi, Mario del Monaco, Cesare Siepi, Walter Finessi, Teatro Comunale Orchestra of Florence, Dimitri Mitropoulos, Teatro Comunale Chorus of Florence & Andrea Morosini
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