Eleanor Steber Gian Giacomo Guelfi Mario del Monaco Oliviero de Fabritiis Vito Susca Enzo Viaro Giorgio Tozzi Maggio Musicale Fiorentino Dmitri Mitropoulos
Bayreuth Festival Choir Bayreuth Festival Orchestra Herman Uhde Eleanor Steber Astrid Varnay Wolfgang Windgassen Josef Greindl Hans Braun Gerhard Stolze Josef Janke Alfons Herwig Theo Adam
Beniamino Gigli Charles Kullman Charlotte Boerner Eleanor Steber Elisabeth Rethberg Francesco Valentino Friedrich Schorr Giovanni Martinelli Hans Clemens Kirsten Flagstad Licia Albanese Lorenzo Alvary Lotte Lehmann Mack Harrell Nadine Conner Raoul Jobin Risë Stevens