Lefebvre, François-Charlemagne (10 April 1775, Paris; 23 May 1839, Paris), composer, was the son of a librarian at the Royal Academy of Music and a student at the royal school of music founded by the baron de Breteuil. He studied harmony and counterpoint under Gossec and became a member of the Opéra orchestra in 1794. Later, in 1814, he joined his father on the library staff of the Opéra and was retired in 1829 after 34 years of service. Lefebvre worked as a copyist in the library of the Opéra…