Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
The Obligation of the First Commandment by Mozart, Ħam 13 Apr 2006, Minn (2006/2006), Immexxi minn Philipp Harnoncourt,, Surmast Direttur Nikolaus Harnoncourt, Theater an der Wien, Vienna, Austria