Nikolaus Harnoncourt leads the Concentus Musicus Vienna and Arnold Schoenberg Choir in a concert of Bach music at Austria's Kloster Melk Benedictine Monastery. Sopranos Christine Schäfer and Anna Korondi and mezzo-soprano Bernarda Fink are featured. Works included in this celebration of the coming of Christmas are Cantata BWV 61, "Nun Komm, der Heiden Heiland"; Cantata BWV 147, "Herz und Mund"; and Magnificat in D Major BWV 243.