Friedrich Nietzsche analyzes the cultural and psychological phenomenon of Richard Wagner in The Case of Wagner, presenting a rigorous critique of modern decadence through the lens of music. Nietzsche explores his complex, formerly devoted relationship with the composer, explaining how his eventual estrangement was born from a fierce loyalty to the regeneration of European culture rather than any petty personal grievance.
The author argues that Wagner is not a true musician rooted in classical health and order, but a consummate actor, a mime, and the ultimate theatrical decadent. Through an examination of Wagnerian opera, Nietzsche traces how the composer manipulated elementary factors such as sound, movement, and colour to mesmerise exhausted nerves, substituting genuine musical form with rhetorical suggestions and overwhelming emotional pathos.
A central problem posed in the text is the way art can promote or depress all vital force. Nietzsche asserts that Wagnerian art acts as a powerful narcotic, satisfying the modern world's craving for sorcerers and idealists who conceal the physical and spiritual ill-health of civilisation. The lack of genuine organic form is masked by philosophical pretension and the intoxicating use of religious and moral symbols, most notably in Parsifal.
To highlight the antithesis to Wagnerian art, Nietzsche turns to the music of Georges Bizet, praising Carmen for its sub-tropical dryness, intellectual clarity, and life-affirming gaiety. Bizet's work requires an intelligent listener and provides the lightness, precision, and productive inspiration that the polypus of endless Wagnerian melody destroys.
Throughout the text, the philosophical argument widens to encompass the diagnosis of the modern soul, caught between contradictory values and physiological decline. Nietzsche warns against the triumph of the theatre over art and the corruption of genuine expression by histrionics. The work concludes by positioning the critique of Wagner as a vital exercise for psychologists and philosophers seeking to overcome the decadence of their age.