This is a virtuosic display piece composed for the salon that features the rhythmic drive and dramatic flair typical of Lefébure-Wély's style. It is defined by its bright, bombastic character and rapid-fire technical passages.
The performer must maintain high rhythmic energy and precise articulation in the octave passages to keep the piece from becoming cluttered.
Comparable difficulty and character — good candidates for what to learn next.
Aux Armes !!! is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 6 — meaning you can already play level 5–6 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 Aux Armes !!! lasts about 3 minutes.
Aux Armes !!! 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 Boléro de concert by Louis James Alfred Lefébure-Wély, Au galop by Vincent d' Indy, Bülow-Marsch by Franz Liszt — see the full similar-pieces list on this page.