Alegria do coração is a simple, expressive work by Geraldo Antônio Horta. It emphasizes lyrical expression and melodic beauty over technical display.
The primary focus should be on sensitive touch and shaping the phrases with appropriate use of pedal.
Comparable difficulty and character — good candidates for what to learn next.
Alegria do coração 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.
A typical performance of Alegria do coração lasts about 3 minutes.
Alegria do coração 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 Candida by Geraldo Antônio Horta, At Bedtime, TH 70 by Pyotr Tchaikovsky, Au matin by Paul Wachs — see the full similar-pieces list on this page.