This piece by the Brazilian composer João Gomes de Araújo reflects the salon style popular in late 19th-century Brazil. It is characterized by its sentimental melodic line and straightforward harmonic language.
Focus on maintaining a smooth legato line in the right hand while balancing the accompaniment.
Comparable difficulty and character — good candidates for what to learn next.
Cair das folhas 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 Cair das folhas lasts about 3 minutes.
Cair das folhas 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 'O sole mio by Eduardo Di Capua, Believe Me, If All those Endearing Young Charms by Irish Folk Music, Belle of the Ball by Leroy Anderson — see the full similar-pieces list on this page.