Director Nicholas Hytner makes his Met debut with this new production of Verdi’s profound, beautiful, and most ambitious opera. Roberto Alagna leads the cast, and Ferruccio Furlanetto, Marina Poplavskaya, Anna Smirnova, and Simon Keenlyside also star. Yannick Nézet-Séguin, back after his triumphant debut leading Carmen, conducts. “I think Don Carlo is the quintessential Verdi opera,” Hytner says. “Right through this opera there is, on the one hand, an implacable expression of impending doom and, on the other hand, a succession of the most gloriously open-throated arias, the most fantastically determined music.”