Between 1958 and 1965 the Decca record company made the first complete recording to be released of Richard Wagner's operatic tetralogy, Der Ring des Nibelungen, comprising Das Rheingold, Die Walküre, Siegfried and Götterdämmerung. Of the four component operas, there had been two previous studio recordings of Die Walküre, and a radio recording of Götterdämmerung that was released on record in 1956, but the Decca Ring was the first recording of the cycle planned and recorded for the gramophone. The recording of The Ring was conceived and produced by Decca's senior producer, John Culshaw, who engaged the Vienna Philharmonic, the conductor Georg Solti and leading Wagner singers including Birgit Nilsson, Wolfgang Windgassen, Hans Hotter and Gottlob Frick and, in roles they did not play onstage, well-known singers such as Kirsten Flagstad, Dietrich Fischer-Dieskau and Joan Sutherland. From Wikipedia (https://en.wikipedia.org/wiki/Der_Rin...) under Creative Commons Attribution CC-BY-SA 3.0 (https://creativecommons.org/licenses/...)