Ernesto Nazareth's 'Adieu' is a spirited piano piece, often described as having a cosmopolitan flair, blending Brazilian rhythms with European salon music. It is characterized by its energetic tempo and virtuosic demands.
Requires significant finger dexterity and power to execute the rapid arpeggios and octave runs cleanly and with drive.
Adieu 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 Adieu lasts about 3 minutes.
Adieu is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.