OPERA

Rudolf Bing, the world renowned former Metropolitan Opera impresario, suffered from advanced Alzheimer’s disease two years ago and thought he was an office worker, a psychiatrist testified Friday. Dr. Alan Tuckman, testifying at proceedings to annul Bing’s marriage to Carroll Douglass, 48, said that the 87-year-old Bing showed no recollection of the Metropolitan Opera, which he had ruled over for 22 years, or of Douglass, his second wife. The annulment proceedings were brought by Bing’s court-appointed conservator, who contends that Bing was suffering from the degenerative brain disease and did not know what he was doing when he married Douglass at a hastily arranged ceremony two years ago.