Vincent Adler's concert works are emblematic of the salon virtuoso era, focusing on brilliant figurations and noble thematic statements. This piece displays a well-balanced form with clear harmonic structures.
Focus on the evenness of the flowing sixteenth-note passages in the right hand.
Comparable difficulty and character — good candidates for what to learn next.
Allegro de concert (Op.15) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 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.
A typical performance of Allegro de concert (Op.15) lasts about 4 minutes.
Allegro de concert (Op.15) 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 de Concert pour piano by Vincent Adler, Ballade pour piano by Vincent Adler, Ballade by Vincent Adler — see the full similar-pieces list on this page.