“Christian Thielemann is quitting as music director of Berlin’s Deutsche Oper in a dispute with the city government over scarce funding, the opera said Tuesday. His departure follows years of bickering over the future of Berlin’s three opera houses as the capital tries to balance its cultural ambitions with $57 billion of municipal debt. Thielemann has complained that the rival Staatsoper, headed by Daniel Barenboim, was getting a better deal and demanded equal treatment.”