Tatjana Mead Chamis is the Associate Principal Violist of the Pittsburgh Symphony Orchestra. In this episode she plays music of Bach and the living Brazilian composer Ernani Aquiar. But the grand finale is her performance of Hindemith’s two minute tempo-raging 4th movement from Op.25 No.1—the hairs on her bow were fraying and flying wildly about by the end. It’s classical style rock ‘n roll for the viola! Follow Highway 89 on twitter @byuH89