Originally for violin and piano, this set of variations on Figaro's aria remains a cornerstone of the early Beethoven chamber repertoire, often performed in piano-solo transcriptions. It demonstrates Beethoven's early mastery of dramatic development within a variation set.
The rapid passage work requires extreme finger independence and rhythmic precision.
Comparable difficulty and character — good candidates for what to learn next.
12 Variations on 'Se vuol ballare' (WoO 40) is rated Henle level 7 of 9 — late advanced repertoire, roughly ABRSM grade 8 and above. In the RCM system it corresponds to about level 9.
You should be comfortable at Henle level 7 — meaning you can already play level 6–7 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 on 'Se vuol ballare' (WoO 40) lasts about 9 minutes.
12 Variations on 'Se vuol ballare' (WoO 40) 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 Rondo a capriccio in G major by Ludwig van Beethoven, Piano Sonata No. 21 'Waldstein' by Ludwig van Beethoven, 10 Variations on 'La stessa, la stessissima' WoO 73 by Ludwig van Beethoven — see the full similar-pieces list on this page.