A classic example of 18th-century variation form, this work explores simple melodic decoration over standard accompaniment patterns. It is representative of the galant style popular in the mid-Classical period.
Maintain consistency in the tempo throughout the varying complexity of the theme's decorations.
Comparable difficulty and character — good candidates for what to learn next.
Allegretto and 6 Variations in A major is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 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.
A typical performance of Allegretto and 6 Variations in A major lasts about 5 minutes.
Allegretto and 6 Variations in A major is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Ballet in G major by Christian Friedrich Schale, The Entertainer by Scott Joplin, Bach-anh-114 by Johann Sebastian Bach — see the full similar-pieces list on this page.