Everything is mixed up on Rio -- rivers and reproduction, dancing and protesting -- and maybe that's the point. Andrea Echeverri's imperturbable voice telegraphs calm, flowing steadily while subjects surface: immigration policies, environmental degradation, rapacious capitalism and the miracle of life. "Rio" is dedicated to the band's home river, the Bogota, and you can't ignore the symbolism of renewal that pervades the album. The best tracks bare their teeth a bit -- as with rapper Gloria Martinez on "28" -- or play, as when Echeverri's daughter Milagros sings on "Ataques de Risa."