Last Saturday night the Atlanta Opera unveiled the third stage production of its 2021-22 season, the company’s comeback season following the prolonged pandemic-related hiatus, with a performance of Rossini’s comic masterpiece, Il barbiere di Siviglia. Though pandemic statistics in our city and state continue to trend favorably, safety for staff and patrons remains a prime focus with the Atlanta Opera, and as it was at the time of the season’s opener last November (Handel’s Giulio Cesare,) proof of vaccination or a negative antigen test are still required to enter the Cobb Energy Center.…