Jongen’s Bourrée combines neo-classical structure with harmonic colors reminiscent of the early 20th century. It is a stylistically clever homage to the Baroque form.
Focus on balance between the contrapuntal voices.
Comparable difficulty and character — good candidates for what to learn next.
Bourrée dans le style ancien (Op.123) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 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.
A typical performance of Bourrée dans le style ancien (Op.123) lasts about 3 minutes.
Bourrée dans le style ancien (Op.123) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Calmes, aux quais déserts by Joseph Jongen, Calmes, aux quais déserts by Joseph Jongen, Partita No. 1 in B-flat major by Johann Sebastian Bach — see the full similar-pieces list on this page.