In January and February 2021 the London Philharmonic Orchestra, under the baton of Vladimir Jurowski, will be presenting Richard Wagner’s tetralogy Der Ring des Nibelungen twice at the Royal Festival Hall. It began performing the operas individually two years ago, with Das Rheingold being presented in 2018, Die Walküre last year and Siegfried appearing now. This is the opera that moves on from the failed attempts of the chief god Wotan to retain control of the world for...