Assertion: sketch | /r/CapableOf | go on l'incontro improvviso
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text: The sketch goes on to list what Haydn regarded as his most important works up to that time: the operas Le pescatrici, L'incontro improvviso, and L'infedelta delusa; his oratorio Il Ritorno di Tobia (1775) and his Stabat Mater (1767).