These are a collection of short, dance-like pieces in the style of German Ländler. They showcase Mozart's characteristic melodic grace and rhythmic vitality in a lighter vein.
Focus on clean articulation and maintaining a light, dance-like feel throughout.
6 Contretänze (K.462) is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5.
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.
6 Contretänze (K.462) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.