This is another energetic and brilliant piano piece by Schubert, characterized by its rapid scale passages and lively rhythmic drive. It offers a good opportunity to develop speed and finger agility.
Focus on evenness of runs and dynamic control throughout the rapid passagework.
An die Sonne (D.272) is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 6.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 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 An die Sonne (D.272) lasts about 3.5 minutes.
An die Sonne (D.272) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.