A minimal piano composition by Sergio Aarón Pérez that focuses on sparse textures and internal resonance. It represents the minimalist approach to contemporary solo piano music.
Focus on the spacing and duration of each note to maximize the resonance of the instrument.
Comparable difficulty and character — good candidates for what to learn next.
122 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.
122 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 12. by Sergio Aarón Pérez, Allegro by Erik Satie, Breaking the ice by Victor Young — see the full similar-pieces list on this page.