Heitor Villa-Lobos's '2 Chôros bis, W.227' are likely the same piece, representing a mature work in his unique Brazilian-influenced modern style. The 'Chôros' are a distinctive genre, blending folk elements with sophisticated harmonic and rhythmic complexity, often characterized by their vibrant and sometimes wild character.
Developing rhythmic precision, handling rapid dynamic shifts, and navigating dense textures are paramount.
2 Chôros bis, W.227 is rated Henle level 8 of 9 — concert repertoire, roughly diploma level. In the RCM system it corresponds to about level 10.
You should be comfortable at Henle level 8 — meaning you can already play level 7–8 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 2 Chôros bis, W.227 lasts about 6 minutes.
2 Chôros bis, W.227 is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.