in Milan. Upon the suggestion of Joseph II and with the approval of Gluck, Salieri was offered the commission, which he gratefully accepted. Joseph II granted Salieri permission to take a year-long leave of absence (later extended), enabling him to write for La Scala and to undertake a tour of Italy. Salieri's Italian tour of 1778–80 began with the production of Europa riconosciuta (Europa Recognized) for La Scala (revived in 2004 for the same opera house's re-opening following extensive renovations). From Milan, Salieri included stops in Venice and Rome before returning to Milan. During this tour, he wrote three new comic operas and he collaborated with Giacomo Rust on one opera, (The Talisman). Of his Italian works one, La Scuola de' gelosi (The School for Jealousy), a witty study of amorous intrigue and emotion, proved a popular and lasting international success. Middle Viennese period and Parisian operas (1780–1788) Upon his return at imperial behest to Vienna in 1780, Salieri wrote one German Singspiel, Der Rauchfangkehrer (The Chimney Sweep), which premiered in 1781. Salieri's Chimney Sweep and Mozart's work for the same company in 1782, Die Entführung aus dem Serail (The Abduction from the Seraglio), were the only two major successes to emerge from the German Singspiel experiment, and only Mozart's opera survived on the stage beyond the close of the 18th century. In 1783 the Italian opera company was revived with singers partly chosen and vetted by Salieri during his Italian tour; the new season opened with a slightly re-worked version of Salieri's recent success La Scuola de' Pelosi. Salieri then returned to his rounds of rehearsing, composition, and teaching. However, his time at home in Vienna quickly ended when an opportunity to write an opera for Paris arose, again through the patronage of Gluck. Salieri traveled abroad to fulfill an important commission. The opera Les Danaïdes (The Danaids) is a five-act tragédie lyrique. The plot was based on an ancient Greek legend that had been the basis for the first play in a trilogy by Aeschylus, entitled The Suppliants. The original commission that reached Salieri in 1783–84 was to assist Gluck in finishing a work for Paris that had been all but completed; in reality, Gluck had failed to notate any of the scores for the new opera and gave the entire project over to his young friend. Gluck feared that the Parisian critics would denounce the opera by