Artsy mimimalism of Tune-Yards is maximum fun live

It's easy to identify the ingredients in Tune-Yards' music: playground chants, Afro-Caribbean rhythms and arty bleep-and-thwack minimalism. What's harder to convey is how smart, lively and just plain fun the Oakland, Calif., duo's live performances can be. Word seems to have gotten around, though. The group's Friday performance at the 9:30 Club was the first of two sold-out nights.