Ernesto Nazareth's 'Andante expressivo' is a beautiful example of his distinctive Brazilian salon music style, blending European romanticism with local influences. It features a poignant melody with delicate accompaniment.
Developing a natural sense of rubato and expressive phrasing is key to this piece.
Andante expressivo is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 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 Andante expressivo lasts about 4 minutes.
Andante expressivo is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.