A short, contemporary solo piano work by Sergio Aarón Pérez. It explores concise musical ideas and structured phrasing in a modern tonal language.
Pay close attention to the articulation markings to ensure the character of the piece is clearly defined.
Comparable difficulty and character — good candidates for what to learn next.
12. is rated Henle level 2 of 9 — beginner repertoire, roughly ABRSM grades 2–3. In the RCM system it corresponds to about level 2.
You should be comfortable at Henle level 2 — meaning you can already play level 1–2 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
12. 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 122 by Sergio Aarón Pérez, 1. Air by Robert King, 12 Variations on 'God Save the King' by Christoph Friedrich Beck — see the full similar-pieces list on this page.