This piece is a standard-form Classical miniature typical of 18th-century teaching literature. It exhibits the clean textures and simple harmonic progressions favored by composers of that time.
Maintain consistent tempo and crisp articulation, avoiding pedal overuse in the rapid passage work.
Comparable difficulty and character — good candidates for what to learn next.
Allegretto in B-flat 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 3.
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 in B-flat major lasts about 2 minutes.
Allegretto in B-flat 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 The Entertainer by Scott Joplin, Bach-bwv-anh-114 by Johann Sebastian Bach, Bach-anh-114 by Johann Sebastian Bach — see the full similar-pieces list on this page.