This is a salon piece by the Brazilian composer Zequinha Abreu. It reflects the parlor music tradition of the late 19th century with a focus on melodic charm.
Focus on balancing the melody against a light, rhythmic accompaniment.
Comparable difficulty and character — good candidates for what to learn next.
Amando sobre o Mar is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 4.
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 Amando sobre o Mar lasts about 3 minutes.
Amando sobre o Mar 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 Amando sobre o Mar (Valsa) by Zequinha Abreu, Belle of the Ball by Leroy Anderson, Black Beauty by Duke Ellington — see the full similar-pieces list on this page.