(Credit: © Monika Rittershaus/Oper Graz) The Nürnberger Oper has decided to end its collaboration with the opera director Peter Konwitschny for the production of Verdi’s “Il Trovatore.” “The background to this is a disagreement with the director’s behavior in dealing with the artists in the house,” said the opera house in a statement for BR24. “The theater management came to {…}