bosiemoncrieff
Headphoneus Supremus
True, but we all know that Wagner was beyond the madness marker---as were most of the romantic period composers-----brilliant, but highly unstable.
Schumann also went insane, yes, as did Donizetti, but I struggle to think of others. Verdi was pretty sane. Ditto Brahms, Mendelssohn, Rossini. Bruckner was cripplingly self-conscious but idk if I'd call him mad.
Funny thing about Wagner re the dizzying cloud of fog shot through with lightning effect his music has on us (to quote Debussy): he had impeccably neat handwriting. His autograph scores (unlike those illegible monstrosities of Beethoven) are models of penmanship.