Is the performing arts center an idea whose time has passed? “Those performing arts complexes were conceived in the ’50s, when the country was puffing out its civic chest and no one quite knew what burgeoning suburbs would mean for the cities they surrounded. By the time the first of the complexes was ready for audiences — Lincoln Center in 1962 — there were 68 others under construction, or planned, around the United States. Many were seen as tickets to legitimacy, playing the role that sports stadiums and museums would assume in later years. Now, decades later, the leaders of these monuments to the arts find themselves searching for new uses of aging halls and for more diverse new generations of patrons, all while spending hundreds of millions of dollars to make their fortress-like campuses more open. The performing arts center is being rethought, if not reinvented.”