The Bach-Gesellschaft Ausgabe is a monumental scholarly edition of Johann Sebastian Bach's complete works, serving as a foundational resource for performers and scholars alike. It offers meticulously edited scores that allow for deep study of Bach's compositional genius across his vast output.
Navigating the diverse repertoire requires mastery of various Baroque stylistic conventions and technical demands.
Bach-Gesellschaft Ausgabe is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
Bach-Gesellschaft Ausgabe is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.