Teatro Real concludes Wagner’s epic tetralogy “Der Ring des Nibelungen” with nine performances of the fourth title, “Götterdämmerung,” after having presented one opera per season, beginning with “Das Rheingold” in 2019. Unfortunately, the production of this fourth opera, directed by Robert Carsen and Patrick Kinmonth, turned out to be repetitive, meaningless, and plain. Dull & Meaningless One of the main {…}