Don Giovanni (; K. 527; Vienna (1788) title: , literally The Rake Punished, or Don Giovanni) is an opera in two acts with music by Wolfgang Amadeus Mozart to an Italian libretto by Lorenzo Da Ponte. Its subject is a centuries-old Spanish legend about a libertine as told by playwright Tirso de Molina in his 1630 play El burlador de Sevilla y convidado de piedra. It is a dramma giocoso blending comedy, melodrama and supernatural elements (although the composer entered it into his catalogue simply as opera buffa). It was premiered by the Prague Italian opera at the National Theater (of Bohemia), now called the Estates Theatre, on 29 October 1787. Don Giovanni is regarded as one of the greatest operas of all time and has proved a fruitful subject for commentary in its own right; critic Fiona Maddocks has described it as one of Mozart's "trio of masterpieces with librettos by Da Ponte". Composition and premiere The opera was commissioned after the success of Mozart's trip to Prague in January and February 1787. The subject may have been chosen because the sub-genre of Don Juan opera had originated in that city. Lorenzo Da Ponte's libretto is based on Giovanni Bertati's for the opera Don Giovanni Tenorio, which premiered in Venice early in 1787. In two aspects he copied Bertati: by opening with the Commendatore's murder and by avoiding mention of Seville (for Bertati the setting was Villena, Spain; Da Ponte simply writes "city in Spain"). The opera was supposed to premiere on 14 October 1787 for Archduchess Maria Theresa of Austria’s visit, but it was not ready in time and Le nozze di Figaro was substituted. Mozart recorded its completion, finally, on 28 October, the night before the premiere (29 October). The opera was rapturously received, as was often true of Mozart's work in Prague. The Prager Oberpostamtzeitung reported, "Connoisseurs and musicians say that Prague has never heard the like", and "the opera ... is extremely difficult to perform." The Provincialnachrichten of Vienna reported, "Herr Mozart conducted in person and was welcomed joyously and jubilantly by the numerous gathering." Scoring The score calls for double woodwinds, two horns, two trumpets, three trombones (alto, tenor, bass), timpani, basso continuo for the recitatives, and the usual string section. The composer also specified occasional special musical effects. For the ballroom scene at the end of the first act, Mozart calls for two