Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
The Twilight of the Gods by Wagner, Richard, Ħad 13 Diċ 1998, Minn (1998/1999), Immexxi minn Harry Kupfer,, Surmast Direttur Daniel Barenboim, Staatsoper Unter den Linden, Berlin, Germany