Performances of the opera (written by Wolfgang Amadeus Mozart in 1781) opera originally scheduled for November were cancelled following advice from the German police, as the Neuenfels production includes a scene featuring the decapitated heads of Jesus, Buddha, Mohammed, and Poseidon. The production was performed in 2003, though it was initially felt that a revival this year may incite Muslim protests and thus put the safety of the performers and audience at risk. There were no reports of disturbances yesterday, however.