Mozart's K.460, '8 Variations on 'Come un Agnello'', are charming and graceful, showcasing his early mastery of variation form. The variations are light and melodious, with tasteful embellishments.
Focus on graceful articulation and maintaining the melodic line clearly amidst the decorative elements.
8 Variations on 'Come un Agnello' (K.460) is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 4.
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 8 Variations on 'Come un Agnello' (K.460) lasts about 9 minutes.
8 Variations on 'Come un Agnello' (K.460) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.