Marilyn Horne, Luigi Alva, Paolo Montarsolo, Enzo Dara, Margherita Guglielmi, Laura Zannini, Alberto Rinaldi, La Scala Chorus, La Scala Orchestra & Claudio Abbado
Beno Blachut, Ludmila Červinková, Karel Kalas, Ladislav Mraz, Jarmila Palivcová, Josef Heriban, Vera Krilová, Rudolf Vonásek, Jarmila Pechova, Jan Soumar, Bohumír Vich, Prague Radio Symphony Orchestra, Prague Radio Symphony Chorus & Karel Ancerl
Ettore Bastianini, Orchestra del Maggio Musicale Fiorentino, Orchestra del Teatro alla Scala di Milano, Orchestra del Teatro Comunale di Firenze, Alberto Erede, Nino Sanzogno, Francesco Molinari-Pradelli, Gianandrea Gavazzeni & Antonino Votto
Elisabeth Schwarzkopf, Otto Edelmann, Christa Ludwig, Eberhard Wächter, Teresa Stich-Randall, Ljuba Welitsch, Paul Kuen, Kerstin Meyer, Nicolai Gedda, Franz Bierbach, Erich Majkut, Gerhard Unger, Harald Pröglhöf, Karl Friedrich, Anny Felbermayer, Philharmonia Chorus, Philharmonia Orchestra & Children's Chorus from Loughton High School for Girls and Bancroft's School