we are looking at Wagner's relationship with Nietzsche between 1868 and 1876 [i.e., what I call Nietzsche's 'Wagner Period'], a relationship which goes far beyond music, as I have indicated in the posts above.The influence on Nietzsche philosophically, culturally and politically, for instance.A good source for all this is the book called 'The Nietzsche Wagner Correspondence' which has an introduction by Mencken; that contains Nietzsche's 'Appeal to the German People' - an unmistakably nationalistic address.Also, Wagner's psychological insights are demonstrated in his librettos e.g., Siegfried, which I shall briefly touch on. Wagner was of that rare breed of Renaissance man who, with immense Will Power, completely created his own reality; he more or less did everything [from the music, words, staging, and even creating an ideal venue due to dissatisfaction with the theatres available at the time] in those massive 'Totalartworks' - he was like the Emperor of his own cultural Kingdom - and far more than just a 'composer'.Wagner carried on with his seemingly impossible ambitions even when he was denigrated and discouraged - you see, there is far more to 'admire' in Wagner than merely his music.And going back to the music, - does a singer have a greater challenge than Wagnerian Opera?