Debussy’s only opera, a mesmerizing meditation on love and betrayal, returns to the Met stage for the first time in almost a decade, with Music Director Designate Yannick Nézet-Séguin conducting the landmark score. A pair of brilliant young Met stars, tenor Paul Appleby and mezzo-soprano Isabel Leonard, are the naïve title lovers, and baritone Kyle Ketelsen is the imperious Prince Golaud. Ferruccio Furlanetto, as Arkel, and Marie-Nicole Lemieux, as Geneviève, complete the cast.