Buttin' In is a rhythmic, jazz-influenced pedagogical work that explores syncopated accents and short melodic bursts. It is musically distinctive for its 'call and response' dialogue between the lower and upper registers.
Focus on the precise rhythmic placement of the syncopations to maintain the piece's forward drive.
Comparable difficulty and character — good candidates for what to learn next.
Buttin' In 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 Buttin' In lasts about 3 minutes.
Buttin' In 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 Alexander's Ragtime Band by Irving Berlin, Waltz in D-flat major, No. 1 by Frédéric Chopin, 12 Variations on 'Ah vous dirai-je, Maman' by Wolfgang Amadeus Mozart — see the full similar-pieces list on this page.