Documentary Introduction to Wagner's Ring: 'De Ring gesmeed'
directed by Pierre Audi; composed by Richard Wagner, 1813-1883 (1854); conducted by Hartmut Haenchen, 1943-; designed by George Tsypin, Eiko Ishioka, 1938-2012, Wolfgang Göbbel; produced by Hans Petri, fl. 1996-2017; performed by Residentie Orchestra, The Hague; in Das Rheingold (Opus Arte, 2006), 50 mins