Nazareth's signature 'Brejeiro' is a quintessential example of the Tango Brasileiro style. It is famous for its lively syncopation and sophisticated harmonic color that define Brazilian piano music.
The performer must navigate the fast, syncopated runs with absolute clarity and rhythmic drive.
Brejeiro is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 6 — meaning you can already play level 5–6 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 Brejeiro lasts about 3 minutes.
Brejeiro is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.