Bastien und Bastienne Bastien und Bastienne ' was one of Mozart's earliest operas, written in 1768 when he was only twelve years old. It was allegedly commissioned by Viennese physician and 'magnetist' Dr. Franz Mesmer (who himself would later be parodied in "Così fan tutte") as a satire of the 'pastoral' genre then prevalent, and specifically as a parody of the opera "Le devin du village" by Jean-Jacques Rousseau. The German libretto is by Friedrich Wilhelm Weiskern, and Johann Andreas Schachtner, based on ' by Justine Favart and Harny de Guerville. After its supposed premiere in Mesmer's garden theater (that is only corroborated
Bastien und Bastienne act coldly towards Bastien, which will make him come running back. Bastien is heard approaching, so Bastienne hides herself. Bastien swaggers in, proclaiming how much he loves Bastienne. Colas informs him that Bastienne has a new lover. Bastien is shocked and asks the magician for help. Colas opens his book of spells and recites a nonsense aria filled with random syllables and Latin quotations. Colas declares the spell a success and that Bastienne is in love with Bastien once more. Bastienne, however, decides to keep up the game a bit longer and spurns Bastien with great vehemence. Bastien threatens suicide,