This is a tender and lyrical song by Franz Schubert, likely a short instrumental piece adapted from a vocal work. It features a simple, beautiful melody with a gentle, supportive accompaniment.
Cultivate a singing tone and focus on nuanced phrasing to express the piece's intimate emotions.
An Sie (D.288) 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 Sie (D.288) lasts about 3 minutes.
An Sie (D.288) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.