This set consists of arrangements of various national folk melodies with characteristic Beethovenian piano variations. It is musically distinctive for its clear classical textures and the composer's ability to elevate simple folk tunes into sophisticated keyboard dialogues.
The primary challenge is maintaining clarity and rhythmic precision in the varied textures while executing classical ornamentation cleanly.
Comparable difficulty and character — good candidates for what to learn next.
10 National Airs with Variations (Op.107) is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 6.
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.
A typical performance of 10 National Airs with Variations (Op.107) lasts about 35 minutes.
10 National Airs with Variations (Op.107) 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 on the Russian Dance from 'Das Waldmädchen' WoO 71 by Ludwig van Beethoven, 12 Variations on the Russian Dance from the Ballet 'Das Waldmädchen' WoO 71 by Ludwig van Beethoven, 12 Variations on 'Menuet a la Vigano' by Ludwig van Beethoven — see the full similar-pieces list on this page.