Deutsche Grammophon celebrates Nikolaus Harnoncourt's 80th birthday with this 2-DVD release of rare, vintage, period Bach performances for the first time. Never released on DVD and, to the dismay of fans, long unavailable--these glorious Bach pieces are conducted by period instrument pioneer, Nikolaus Harnoncourt, as only he can. Harnoncourt, a notable cellist, performs in two concertos and on gamba in one. Harnoncourt warns, "If we lose contact with the great works of Bach, we lose our contact ...