<Tr> <Th> Language </Th> <Td> Italian </Td> </Tr> <Tr> <Th> Premiere </Th> <Td> 26 January 1790 (1790 - 01 - 26) Burgtheater, Vienna </Td> </Tr> <P> Così fan tutte, ossia La scuola degli amanti (Italian: (koˈsi ffan ˈtutte osˈsiːa la ˈskwɔːla deʎʎ aˈmanti; koˈzi); Thus Do They All, or The School for Lovers), K. 588, is an Italian - language opera buffa in two acts by Wolfgang Amadeus Mozart first performed on 26 January 1790 at the Burgtheater in Vienna, Austria . The libretto was written by Lorenzo Da Ponte who also wrote Le nozze di Figaro and Don Giovanni . </P> <P> Although it is commonly held that Così fan tutte was written and composed at the suggestion of the Emperor Joseph II, recent research does not support this idea . There is evidence that Mozart's contemporary Antonio Salieri tried to set the libretto but left it unfinished . In 1994, John Rice uncovered two terzetti by Salieri in the Austrian National Library . </P>

Who composed the music and who wrote the words to the opera cosi fan tutti