Martina Arroyo, Jane Berbi, Mario Frosini, Placido Domingo, Jos Tenor Vocal Carreras, Franco Calabrese, Piero Tenor Vocal De Palma, Carlo Meliciani, Rita Talarico, Elke Schary, Fernando Jacopucci, Dame Soprano Vocal Te Kanawa Kiri, Nicola Ghiuselev [Bass Vocals], Josella Ligi, Elio Prisco, Sesto Bruscantini [Baritone Vocal], Franca Mattiucci, Michel Tenor Vocals SNChal, Mirella Soprano Vocals Freni, Elizabeth Soprano Vocals Harwood, John Dobson, Placido Tenor Vocals Domingo, Gianni Maffeo, Paolo Montarsolo, Alberto Rinaldi, Jos Bass Baritone Vocals Van Dam, Guido Mazzini, Franco Lombardi, Luigi Bass Vocals Roni, Francis Egerton, Vito Susca, Alessandro Maddalena, Zoltan Kelemen, Frederica Mezzo-Soprano Vocals Von Stade, Michel Tenor Vocal SNChal, Silvio Bass Vocals Maionica, Fiorenza Cossotto, Anne Pashley, Anna Pedrotti, Luciana Palombi, Teresa Cahill, Franco Ricciardi Tenor Vocal, Renata Soprano Vocals Scotto, Thomas Allen Baritone Vocals, Franco Ricciardi Tenor, Tom Krause, Shirley Mezzo Soprano Vocals Verrett, Richard Bass-Baritone Vocal Van Allan, Luciano Pavarotti, Piero Cappuccilli, Renato Cioni, Nicolai Bass Vocal Ghiaurov, Mario Di Filici, Willy Caron, Dame Te Kanawa Kiri
