This Allegro is a modern composition likely characterized by contemporary harmonic language and rhythmic vitality. Its distinctiveness lies in its direct approach to energy and potential dissonance.
Developing stamina and rhythmic precision for rapid figuration is key.
Allegro is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
Allegro is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.