Bach's Canons (BWV 1087) are a collection of canonic inventions on a bass line, demonstrating his profound mastery of contrapuntal technique. These pieces are intricate musical puzzles that reveal remarkable ingenuity.
Precise voice leading and rhythmic accuracy are crucial for navigating the complex canonic textures.
14 Canons (BWV 1087) is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 7.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
14 Canons (BWV 1087) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.