The Neue Bachgesellschaft, or New Bach Society, is an organisation based in Leipzig, Germany, devoted to the music of the composer Johann Sebastian Bach. It was founded in 1900 as the successor to the Bach Gesellschaft, which between 1850 and 1900 produced a complete edition of Bach's works, publishing many pieces for the first time. On completion of these collected works (the Bach-Ausgabe), the original Society dissolved itself. The new Society approved three enduring projects: