With the attainment of his majority the second period in the life of this great genius began. Unable to obtain permission from the shabby prelate for father and son to go together upon an artistic tour, the father at length decided to send the young man out with his mother, and in September, 1777, the two started for Paris, traveling in their own carriage with post horses. Their plan was to give a concert at every promising town, taking whatever time might be necessary for working it up in due form. In this way their journey was considerably prolonged by delays at Munich, Mannheim and Augsburg. At Mannheim, especially, the incidents of the tour were varied by Mozart's falling in love with the charming daughter of the theatrical prompter and copyist, a promising singer, who afterward married happily in quite a different quarter. At Paris things did not turn out quite so favorably as the father had anticipated. Most afflicting of all, the mother fell sick there, and died, so that the son left Paris in September for home with a far heavier heart than when he entered it. During the most of 1779 and 1780 he remained at Salzburg, fulfilling his duties as assistant conductor. Then came his first opera in Germany, "_Idomeneo, Re di Creta_," produced at Munich January 29, 1781. The success of this work was so decided that it determined Mozart's career as an operatic composer. A few months later he quarreled with the archbishop, and the unpleasant connection came to an end. His second opera, "_Die Entfuehrung aus dem Serail_" ("The Elopement from the Seraglio"), was produced at Vienna July 16, 1782. This was his first opera in German. In August of this year he was married to Constance Weber, younger sister of her who had first enchanted him. The marriage was congenial in many ways, but as the wife was incapable in money matters and administration, and Mozart himself careless as a business man, and in receipt of a small and irregular income, they soon found themselves in a sea of little troubles, from which the struggling artist was nevermore free. Only at the last moment, when indeed his life was all but extinct, did the clouds disappear, and a prospect open before him, which if he had lived to enjoy it, would have placed his remaining days in easy circumstances. In 1785 the father visited his son in Vienna, and upon one of the first days of his stay, there was a little dinner party at Mozart's house, with Haydn and the two Barons Todi. In his letter home, Leopold Mozart says that Haydn said to him: "I declare to you, before God, as a man of honor, that your son is the greatest composer that I know, either personally or by reputation; he has taste, and beyond that the most consummate knowledge of composition." In return for this compliment Mozart dedicated to Haydn six string quartettes, with a laudatory preface, in which he says that it was "but his due, for from Haydn I first learned to compose a quartette." Mozart was an enthusiastic Freemason, and