Gottfried van Swieten and income following the earlier completion of their Grand Tour of Europe. According to Mozart's father Leopold, Van Swieten was involved in the early planning of Wolfgang's ill-fated opera "La Finta Semplice" (the opera was later blocked by intrigues, and could be performed only in Salzburg). In 1781, shortly after Mozart had moved to Vienna, van Swieten met him again: at the salon of Countess Thun, Mozart played extracts from his recent opera Idomeneo, with van Swieten and other important officials in the audience; this event helped instigate Mozart's commission for the opera "The Abduction from the Seraglio", his first
Persian Letters texts and renewed perspectives. Particularly important were the extensively annotated edition by Paul Vernière and the research of Robert Shackleton on Muslim chronology; also studies by Roger Laufer, Pauline Kra and Roger Mercier, which put new focus on the work’s unity and integrated the seraglio into its overall meaning. Others who have followed have looked into the ramifications of epistolary form, the structure and meaning of the seraglio, Usbek’s contradictions. Beginning about 1970 it is religion (Kra) and especially politics (Ehrard, Goulemot, Benrekassa) which predominate in studies on "Lettres persanes", with a progressive return to the role of the seraglio