Opera grew out of a tradition of court entertainment in Renaissance Italy. As it became more widespread with the advent of public opera houses, the tastes of the 1 percent continued to govern which operas were performed. …This is the reality of opera-house programming year after year. It is an art form that, like Miss Havisham in Charles Dickens’s “Great Expectations,” insists on wearing the same wedding dress every day for the rest of its life. Only one of the 25 operas scheduled for the Metropolitan Opera’s 2019-2020 season, Philip Glass’s “Akhnaten,” was written in the past 50 years.