David Toub’s '10'' is a contemporary minimalist work that explores static tonal centers through repetitive gestures. It relies on microscopic shifts in texture rather than traditional developmental arcs.
The player must achieve extreme consistency in touch during the highly repetitive passages.
Comparable difficulty and character — good candidates for what to learn next.
10' is rated Henle level 7 of 9 — late advanced repertoire, roughly ABRSM grade 8 and above.
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 10' lasts about 10 minutes.
10' 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 Asturias (Leyenda) by Isaac Albéniz, La cathédrale engloutie by Claude Debussy, Berceuse élégiaque, BV 252a by Ferruccio Busoni — see the full similar-pieces list on this page.