Un ballo in maschera: Atto I, scena 1. “Posa in pace, a' bei sogni ristora” by Robert Shaw , George Cehanovsky , Virginia Haskins , Robert Merrill , Nicola Moscona , Herva Nelli , Jan Peerce , Robert Shaw Chorale , John Carmen Rossi , Norman Scott , Claramae Turner , NBC Symphony Orchestra , Arturo Toscanini