Hagen, the first chapter in the Theater an der Wien's reimagining of The Ring, features music from Das Rhinegold and Götterdämmerung woven seamlessly together, telling the story from the perspective of Hagen, son of Nibelung dwarf, Alberich.
Rimsky-Korsakov’s opera is rarely performed outside Russia. Sadly, I doubt that Daniel Kramer’s staging for Opera Vlaanderen will win it many new friends.