"his biography of Bach" . "his multi-volume Bach biography" . "a three-volume biography" . "biography in three volumes" . . "Spitta III" . . "his Bach-biography" . . "Johann Sebastian Bach" . "his 1873 biography" . "his 1873 Bach biography" . . "''Johann Sebastian Bach''" . "Bach biography" . "his Bach biography" . . "Bach-biography" . "19th century biography of the latter" . . "Spitta" . . "biography of the composer" . . "Spitta's Johann Sebastian Bach" . . "his monumental 1873\u201380 biography" . "Johann Sebastian Bach: His Work and Influence on the Music of Germany, 1685\u20131750" . "Spitta's Johann Sebastian Bach" .