Waltraud Meier sings her first Met performances of Klytämnestra, Elektra’s mother and the object of her fury, with Adrianne Pieczonka as Elektra’s sister, Chrysothemis; Eric Owens as her exiled brother, Orest; and German tenor Burkhard Ulrich, in his Met debut, as the corrupt monarch Aegisth. Chéreau’s longtime collaborator Vincent Huguet will stage the production at the Met.