Often referred to as the Tempest, this sonata is marked by its dramatic, improvisatory character and mysterious recitative passages. It showcases Beethoven’s innovative use of form and coloristic keyboard textures.
Control over the subtle, ghost-like textures and the rhythmic precision of the rapid runs is essential.
Comparable difficulty and character — good candidates for what to learn next.
Piano Sonata No. 17 'Tempest', No. 2 is rated Henle level 7 of 9 — late advanced repertoire, roughly ABRSM grade 8 and above.
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 Piano Sonata No. 17 'Tempest', No. 2 lasts about 22 minutes.
Piano Sonata No. 17 'Tempest', No. 2 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 Piano Sonata No. 8 'Pathétique' by Ludwig van Beethoven, Piano Sonata No. 23 'Appassionata' by Ludwig van Beethoven, 32 Variations in C minor by Ludwig van Beethoven — see the full similar-pieces list on this page.