Melody wins, every time. This kind of lazy tunefulness is the mark of Maria Rui, and I would say in a larger sense, Brazilian acoustic pop itself. You will not find a deeper field of talented songwriters and effortless singers anywhere else in the world. The language is Portuguese, but the Brazilian flavor lives in the soft g sound we have in "bourgeois"; once you can pick it out it's like pepper on this gorgeous salad of notes.
Oh yeah, forgot to mention; that song was recorded live.