(Credit: Boris Streubel) The famed German mezzo-soprano Doris Soffel will appear in the role of Klytämnestra in Richard Strauss’ opera “Elektra” at the Wiener Staatsoper on September 8, 2020. Doris Soffel is one of the leading Wagnerian and Straussian singers, having taken on such roles as Kundry in “Parsifal,” Ortrud in “Lohengrin,” and Fricka and Erda in the composer’s iconic {…}