This is a virtuosic concert piece by the Italian composer and violinist Marco Anzoletti. It features typical Romantic-era piano writing with expanded textures and demanding technical passages.
The primary challenge is maintaining clarity and phrasing through rapid, wide-ranging passage work and thick textures.
Comparable difficulty and character — good candidates for what to learn next.
Allegro di Concerto in E major is rated Henle level 7 of 9 — late advanced repertoire, roughly ABRSM grade 8 and above. In the RCM system it corresponds to about level 10.
You should be comfortable at Henle level 7 — meaning you can already play level 6–7 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 Allegro di Concerto in E major lasts about 8 minutes.
Allegro di Concerto in E 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 Allegro di Concerto in E minor by Marco Anzoletti, Ballata No.1 in G minor by Marco Anzoletti, Cadenza e Variazione Finale by Marco Anzoletti — see the full similar-pieces list on this page.