In 1804 he started for Paris with his fine Guarnerius violin, given him by Remi, a Russian violinist. Just outside of Göttingen it was stolen from the carriage. Spohr returned to Brunswick and with the Duke's help got another violin. Then he made a tour, playing in several German cities, including Leipsic, Dresden and Berlin, in the last place having the assistance of Meyerbeer, then a clever pianist thirteen years old. In 1805 Spohr became leader of the Duke of Gotha's band. He married Dorette Schneidler, a harp-player, and wrote for her and himself some compositions for harp and violin. He wrote his first opera, "Die Prüfung," which reached a concert performance. With his wife in 1807 he visited Leipsic, Dresden, Munich, Prague, Stuttgart, Heidelberg and Frankfort. His second opera "Alruna" was written in 1808, but it was never performed, though accepted at Weimar. In this year Spohr went to Erfurt to see Napoleon's congress of princes, but found that ordinary human beings like himself could not enter the theatre which they attended in the evenings. He persuaded the second horn player in the orchestra to allow him to take his place and practised on the horn all day. In the evening, being forbidden to stare at the august audience, he viewed the assembled potentates in a small mirror which he had taken with him for that purpose. The year 1809 is important in Spohr's history for two reasons. While making a tour he received at Hamburg a commission for an opera, "The Lovers' Duel," and at Frankenhausen in Thuringia he conducted the first music festival in Germany. For the second of those festivals in 1811 he wrote his first symphony in E flat. The opera was also finished in the winter of 1810-1811. His first oratorio, "Das jüngste Gericht," was written for the Fête Napoleon at Erfurt and produced there Aug. 15, 1812. It was in the composition of this work that he found himself hampered by his lack of skill in counterpoint. He bought Marpurg's work and studied it. But Spohr was dissatisfied with his opera and with his oratorio. He felt that he was too much under the dominance of Mozart, and resolved to free himself from that master's influence. He says in his autobiography that in "Faust" he was careful to avoid imitating Mozart. In 1812 he made his début at Vienna as violinist and composer with such success that the leadership of the orchestra at the Theatre an der Wien was offered to him. The conditions were very favorable, so he gave up his position at Gotha and betook himself to the Austrian capital. There his duties were burdensome, but he was in the musical centre of Europe. He met Beethoven, and was on terms of friendship with that great master, whose genius, however, he did not fully appreciate. Among his treasures when he left Vienna was a canon for three voices on some words from Schiller's "Maid of Orleans" written for him by Beethoven. Spohr's "Autobiography" contains some interesting anecdotes about Beethoven's conducting.