Schöne Stimmen

Cast: Guido Baumann, Theo Adam, Martina Arroyo, Piero Cappuccilli, Tatiana Troyanos, Grace Bumbry, Plácido Domingo, Sylvia Geszty, Franz Crass, Walter Berry, Fiorenza Cossotto, Peter Schreier, Giuseppe Di Stefano, Tito Gobbi, Ingeborg Hallstein, Gwyneth Jones, Mirella Freni, Roberta Peters