 After his appointment in 1873 as second librarian at the Paris Opera Library, he organized the theatre's historical scores and parts, publishing a chronological inventory of scores under the title "Bibliothèque musicale du théâtre de l'Opéra" in 1876 with a corrected and completed edition in 1878.He continued working at the library until 1890.As a musicologist, he contributed articles on music to newspapers and published reductions for piano and singing of old French operas and ballets, with the first being a reduction of Lully's opera "Thésée".