Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
The Valkyrie by Wagner, Richard, Ħam 05 Mej 2011, Minn (2011/2011), Immexxi minn Robert Lepage, Surmast Direttur James Levine, Derrick Inouye, Metropolitan Opera House, New York City, United States