Der Stein der Weisen Tamino and Sarastro). "Der Stein der Weisen" may have provided a model for that work, as the two have a similar structure and source. The work was initially popular, but was largely absent from the standard repertoire for the two centuries after 1814, American musicologist David Buch announced the discovery of a Viennese score with attributions to all five composers. This was taken by some to indicate that "Der Stein der Weisen" was a previously unknown Mozart work, although in fact only a duet ("Nun liebes Weibchen", known as the "cat duet") and two sections of the act 2 finale
Wolfgang Amadeus Mozart and Prague pointed out how precarious opera production was in the city throughout the eighteenth century. Indeed, productions of Italian opera in Prague ceased again already in 1789, not to re-appear again until 1791, due to the departure of the impresario Domenico Guardasoni and the death of the impresario Pasquale Bondini. Another possible reason why Mozart didn't stay is given by Volkmar Braunbehrens, citing Schenk: the death in Vienna in November 1787 of Gluck, whose post in the Imperial musical establishment Mozart sought (and ultimately got, though at a much lower salary); Mozart needed to return home to lobby for the position.