(Photo: Raftermen Photography) The Atlanta Opera (TAO) thrives and even expands while many classical music organizations contract. Their spring mainstage offerings began this month with Verdi’s “Macbeth. ” But not before the announcement of their 2025-26 season, including what few companies can afford to do—“Götterdämmerung,” completing an entire “Ring” cycle. Their season also includes Philip Glass’ “La Belle et la {…}