Argentina

For about 20 minutes one sunny afternoon, the NPR Music offices were converted into a small Latin American folk club, where Rei and her band treated us to stellar musicianship and genre-bending music.

The Argentine electronic artist has a loyal, adoring fan base that crosses cultural barriers — and her remarkable new album is both playful and profound. "Eras," the first single, washes over you with trance-like beats and a deep bass line as her whispered vocals weave in and out.

Bajofondo started as a loose collective of musicians from Argentina and Uruguay, but over time formed a solid core of players that have since become a…