For two years he worked and studied, and accomplished great things musically, then the Elector of Bavaria invited him to write a comic opera for the Carnival, which invitation the boy joyfully accepted, and at once set to work on the none too easy task. He was now at home again, and his father and Nannerl listened eagerly to his themes, as bit by bit he elaborated them. In due time the opera was finished; it was called "La Finta Giardiniera," and Wolfgang, accompanied by his father and pretty sister, set off for Munich, where the performance was to be given, where court life was very gay just then, and where Nannerl and Wolfgang were sure to have much to amuse and interest them. Nannerl was taken to board by a widow who lived in the old market-place, while Leopold and the young composer were obliged to take rooms nearer the Court. At once rehearsals of the opera began, and the days were marked by a succession of exciting events for Wolfgang and for Nannerl, into whose apartment Wolfgang ran half a dozen times a day to report progress. Up and down the street, humming bits of the opera or intent on some new scenic effect, dashed the young composer a dozen times a day, and he and Nannerl were perfectly sure that no performance ever was or ever could be so marvellous, as this one was to be. At last the great night came. Nannerl was dressed in her dainty white gown hours before the time, but Wolfgang, who was detained at the opera house until the last moment, had just time to jump into his fine new costume of satin and lace, with the flash of brilliants in his ruff and on his slippers; without a glance in the mirror, but he looked like a proud young prince when he joined his father and sister, although the hand that he slipped through Nannerl's arm was trembling. Who could say what the evening would hold of triumph or of failure? No wonder he trembled. When they arrived at the opera house, it was crowded to the doors. All the court was there in gala dress, but the youthful music-master, scarcely nineteen years old then, sat with his father and Nannerl, unmindful that all eyes were focussed on him, forgetful of all but the performance of his opera. The music began, and from the first note to the last, the opera was a triumphant success. Young Mozart then became the object of the wildest enthusiasm, and from that moment his popularity as a musician was established. There let us leave him, as he stands before us in his stately costume, bowing acknowledgment of the applause raining upon him, with the blaze of light shining full upon his clean-cut dignified face, and when we hear his famous compositions played, let us think back to that night of his first great public triumph, when he was nineteen years old. Pianist, violinist, composer, little music-king and great genius as well--the world owes a debt of gratitude to Wolfgang Amadeus Mozart, which can only be paid in the coin of appreciation.