This piece by Leandro de Oliveira is a short character work exploring modal harmony. It is distinctive for its use of atmospheric spacing and quiet dynamics.
Control the touch to ensure the harmonic colors remain clear and resonant.
Comparable difficulty and character — good candidates for what to learn next.
Canoinha is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 3.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 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 Canoinha lasts about 2 minutes.
Canoinha 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 Beside Still Waters by Bernard Hamblen, 1st Sonatina by Kees Schoonenbeek, 'Adeste Fideles' with Variations by W.E. Tipper — see the full similar-pieces list on this page.