These variations are based on the iconic ground bass of La Folia, a standard theme for Baroque composers. C.P.E. Bach infuses the set with his characteristic empfindsamer Stil, featuring surprising harmonic shifts and intricate figurations.
Maintain a strict rhythmic integrity while carefully executing the stylistically appropriate Baroque ornaments.
Comparable difficulty and character — good candidates for what to learn next.
12 Variations über die Folie d'Espagne, H.263 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 12 Variations über die Folie d'Espagne, H.263 lasts about 8 minutes.
12 Variations über die Folie d'Espagne, H.263 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 12 Variations über die Folie d'Espagne, Wq.118/9 (H.263) by Carl Philipp Emanuel Bach, 12 Variations auf die Folie d'Espagne, Wq.118/9 by Carl Philipp Emanuel Bach, Allegro by Carl Philipp Emanuel Bach — see the full similar-pieces list on this page.