Body Fit by Daniel Léo Simpson is a high-energy, contemporary piano etude focusing on rhythmic drive and agility. Its distinctiveness lies in its repetitive, motoric patterns and demands for high physical precision.
The technical hurdle is the maintenance of strict time and rhythmic accuracy during fast arpeggiated passages.
Comparable difficulty and character — good candidates for what to learn next.
Body Fit is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 7.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 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 Body Fit lasts about 3 minutes.
Body Fit 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 Big City Blowout by Daniel Léo Simpson, Boulevard Blues by Daniel Léo Simpson, Befiehl du deine Wege in B minor by Daniel Léo Simpson — see the full similar-pieces list on this page.