Beethoven’s only opera—an ode to freedom, justice, and the human spirit—returns to the Met with a fine cast. Adrianne Pieczonka is Leonore, who, disguised as Fidelio, courageously fights for her husband Florestan’s freedom. Klaus Florian Vogt is Florestan, Greer Grimsley is Don Pizarro, and Falk Struckmann is Rocco. Sebastian Weigle conducts.