This is a brief, soulful piano work reflecting the sentimental aesthetic of 19th-century salon music. It is musically notable for its simple but effective use of minor-key dissonance to convey sorrow.
Achieving a seamless legato in the right-hand melody is essential for the intended melancholic effect.
Comparable difficulty and character — good candidates for what to learn next.
Amor e lágrimas 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 Amor e lágrimas lasts about 3 minutes.
Amor e lágrimas 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 Bouquet de noiva by J. M. Azevedo Lemos, Prelude in E minor, No. 4 by Frédéric Chopin, Black and Blue by Fats Waller — see the full similar-pieces list on this page.