1798 also saw the twelve-year-old Weber's first published work, six fughettas for piano, published in Leipzig. Other compositions of that period, among them a mass, and his first opera, Die Macht der Liebe und des Weins (The Power of Love and Wine), are lost; but a set of Variations for the Pianoforte was later lithographed by Weber himself, under the guidance of Alois Senefelder, the inventor of the process.
In 1800, the family moved to Freiberg in Saxony, where Weber, then 14 years old, wrote an opera called Das stumme Waldmädchen (The Silent Forest Maiden), which was produced at the Freiberg theatre. It was later performed in Vienna, Prague, and Saint Petersburg. The young Weber also began to publish articles as a music critic, for example in the Leipziger Neue Zeitung in 1801.