Schubert's 'Blanka' D.631 is a charming and melodically rich piano piece, often considered a miniature sonata. It exhibits Schubert's characteristic lyricism and elegant phrasing.
Maintain a singing tone in the melody and ensure a clear separation between melody and accompaniment, especially in faster passages.
Blanka (D.631) is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 6 — meaning you can already play level 5–6 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 Blanka (D.631) lasts about 5 minutes.
Blanka (D.631) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.