Colombia’s best-known rock export has mellowed considerably in recent years, not always to their own advantage. The band revolves around a duo who were once a couple, and where their earliest ’90s albums gave a punk charge to rhythms from across the Spanish-speaking world, later sets increasingly drifted into the electronic stratosphere. While their new album never thrashes, it at least keeps its pretty bare feet on Mother Earth—the more multi-instrumentalist Hector Buitrago propels protest poet Andrea Echeverri’s throaty coffeehouse sing-song with rain-forest percussion and street-carnival chatter, the warmer she sounds. “Gratis” undulates like gothic Middle Eastern rock; “Madre” builds a traditional chant from Andean guest musicians into a sort of funk. And when Echeverri’s 6-year-old daughter joins in on the hip-hop-scratched “Ataque De Risa,” you’re halfway convinced she’s a mini M.I.A. in training.

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