Schulthesius was an active composer in the late Classical era whose work mirrors the style of his contemporaries. It is distinctive for its focus on light, idiomatic decorative flourishes.
Students must navigate the transition between distinct variations while maintaining a unified tempo.
Comparable difficulty and character — good candidates for what to learn next.
12 Variations on an Allegretto (Op.5) is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 6.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 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 12 Variations on an Allegretto (Op.5) lasts about 5 minutes.
12 Variations on an Allegretto (Op.5) 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 12 Variations on Marlborough's Air by Johann Paul Schulthesius, 12 Variations on Marlborough's Air by Johann Paul Schulthesius, Andante by Wolfgang Amadeus Mozart — see the full similar-pieces list on this page.