was in fact a rabbi). Wagner first suggested that Levi should convert to Christianity, which Levi declined to do. Wagner then wrote to King Ludwig that he had decided to accept Levi despite the fact that (he alleged) he had received complaints that "of all pieces, this most Christian of works" should be conducted by a Jew. When the King expressed his satisfaction at this, replying that "human beings are basically all brothers", Wagner wrote to the King that he "regard[ed] the Jewish race as the born enemy of pure humanity and everything noble about it". Seventy-one years later, the Jewish bass-baritone George London performed in the role of Amfortas at Neu Bayreuth, causing some controversy. It has been claimed that Parsifal was denounced as being "ideologically unacceptable" in Nazi Germany, and that the Nazis placed a de facto ban on Parsifal. In fact there were 26 performances at the Bayreuth Festival between 1934 and 1939 and 23 performances at the Deutsche Oper Berlin between 1939 and 1942. However Parsifal was not performed at the Bayreuth Festival during World War II. Music Leitmotifs A leitmotif is a recurring musical theme within a particular piece of music, associated with a particular character, object, event or emotion. Wagner is the composer most often associated with leitmotifs, and Parsifal makes liberal use of them. Wagner did not specifically identify or name leitmotifs in the score of Parsifal (any more than he did in any other of his scores), although his wife Cosima mentions statements he made about some of them in her diary. However, Wagner's followers (notably Hans von Wolzogen whose guide to Parsifal was published in 1882) named, wrote about and made references to these motifs, and they were highlighted in piano arrangements of the score. Wagner's own reaction to such naming of motifs in the score was one of disgust: "In the end people believe that such nonsense happens by my suggestion." The opening prelude introduces two important leitmotifs, generally referred to as the Communion theme and the theme of the Grail. These two, and Parsifal's own motif, are repeated during the course of the opera. Other characters, especially Klingsor, Amfortas, and "The Voice", which sings the so-called Tormotif ("Fool's motive"), have their own particular leitmotifs. Wagner uses the Dresden amen to represent the Grail, this motif being a sequence of notes he would have known since his childhood in Dresden.