Charles-Valentin Alkan's '3 Marches' Op. 40 are monumental works that push the boundaries of piano technique, embodying his characteristic grandeur and dramatic intensity. They are known for their demanding textures and powerful sonorities.
Developing significant power and stamina in the hands and arms is essential to navigate the large chords and rapid passages.
3 Marches (Op.40) is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8.
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 3 Marches (Op.40) lasts about 12 minutes.
3 Marches (Op.40) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.