Mozart's Adagio K. 361, often part of a Serenade, is a beautifully sculpted movement characterized by its flowing melodic lines and warm harmonies. It evokes a sense of serene contemplation and graceful lyricism.
Emphasize legato playing and the ability to shape the melodic line with subtle dynamic and expressive nuances.
Adagio K. 361 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 Adagio K. 361 lasts about 6 minutes.
Adagio K. 361 is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.