If the prose sketch which Wagner mentions in Mein Leben was accurately dated (and most of Wagner's surviving papers are dated), it could settle the issue once and for all, but unfortunately it has not survived.
Hvis prosaskitsen til værket, som Wagner nævner i Mein Leben, var nøjagtigt dateret (og de fleste af Wagners overleverede papirer er daterede), havde man kunnet løse problemet en gang for alle, men skitsen er desværre ikke overleveret.