Has there been a mistake here? The music appears to be a Gavotte by Beethoven, arranged by Harold Bauer, which is also implied by the notes on the page. But it seems to have nothing to do with the title of the page - namely "La Ritrovata Figlia di Ottone II" by Leopold Koželuh.
If there is a connection and this is not a mistake, perhaps it needs to be explained, because it's certainly far from clear, as things currently stand. M.J.E. 11:38, 20 September 2008 (EDT)