Rattling floorboards and seats caused by the stomping of a rowdy crowd is a common occurrence at sporting events. Such a regularity becomes rather out of place at a concert venue however, as was the case for The Head and the Heart’s sold out Boulder show. Hollers and whistles accompanied the vibrations during the set, at its finale, and held out through to the encore. It was one of many stops on the band’s first headlining tour, and while The Head and the Heart wasn’t spot-on, their Boulder Theater audience showed the utmost support and enthusiasm for the Seattle based folk rockers.