The Metropolitan Opera: Hansel and Gretel: This deliciously dark take on the beloved Brothers Grimm fairy tale, appealing to audiences of all ages, was part of the Met’s popular English-language holiday series. Alice Coote and Christine Schäfer star as the famous siblings lost in the woods, who battle the ravenous Witch—a zany portrayal by tenor Philip Langridge—while the Met orchestra, under the baton of Vladimir Jurowski, glories in the rich, folk-inspired score.