PS. The article cited as the source for arguments about Romance is questionable. First, it is an online article and not a published, peer-reviewed article, so its authority can be questioned. Second, that "article" cites sources that are even more questionable, such as emails from Ophee (a trained pilot / publisher), not a peer-reviewed musicological publication or dating done by means of scientific methods by experts. Third, you cannot cite a pdf image of a photocopy of a so-called "earlier" or "original" text! Fourth, upon what evidence does Ricordi base its attribution of the piece to Rubira? What is the so-called evidence that Rubira wrote the piece in the 19th century? If there is anything concrete, CITE it! Cite original, verifiable texts that make the arguments, not your buddy's little internet article (which no real academic/scholar would accept as being proof of anything).  Finally, lets have some proof that this "Antonio Rubira" character even existed in reality. I may be wrong on this last point, but something about it smells fishy and contrived so a publisher can make money.