17thcentury 1813-1883 1837-1930 1889-1945 18thcentury 1917-1966 1919-2010 20thcentury adolf biography cosima festspielhaus(bayreuth friendsandassociateshitler germany germany) history musicandstate musicians opera operaproducersanddirectors performanceswagner richard stage-settingandscenery wagner wagnerfamily wieland winifred wolfgang