Naysayers accuse indie rock of being cautious and precious, but something remarkably contrary yet idiomatic still emerges now and then. Such as Yeasayer, whose peculiar, positivity-powered debut creates order from a mess of chants, tambourines, freak folk, and spacey atmospherics. One minute it’s a worry-free TV on the Radio (“2080”); the next, a Crazy Horse guitar roar; and later, a touching campfire chorus praying, “In my short life, I have met so many people I deeply care for.” Near nonsense rarely feels this rich and unambiguous.