Brand : DOCUMENTS, Binding : Audio CD, Label : Documents (Membran), Publisher : Documents (Membran), NumberOfDiscs : 41, NumberOfItems : 41, Format : Box-Set, medium : Audio CD, releaseDate : 2014-08-15, artists : Kirsten Flagstad, Elisabeth Schwarzkopf, Gottlob Frick, Tito Gobbi, composers : Richard Wagner, Beethoven, Ludwig Van, Weber, Carl Maria Von, Mozart, Wolfgang Amadeus, Giuseppe Verdi, conductors : Wilhelm Furtwängler