More than two decades spent exploring the influences and textures of indie-rock have given Yo La Tengo an authoritative grasp on everything from Velvet Underground feedback drones to metronomic Krautrock grooving to light and free Parisian pop. 2009’s Popular Songs maintains the trio’s free-form pursuit. “Here to Fall” skims several different genres as its guitars crash, burn and shimmer in allegiance to an elusive stylistic genre they practically invented. Georgia Hubley takes the mic for the ‘60s pop flow of “Avalon or Someone Very Similar.” Later on, the band switches gears with the space exploration of “By Two’s.” “Nothing to Hide” returns the band to earth for an earnest guitar number laced with feedback. “If It’s True” shuffles with amiable early-‘60s pop. “I’m On My Way” leisurely paces itself with organ and subdued electric guitars. “The Fireside” closed the album with more than 11 minutes of slow, ambient tone poem, preceded by the 16-minute feedback-charged blow-out (“And the Glitter Is Gone”).