In the 2010 documentary film, Desert Fugue, Bach historian, Christoph Wolff and organist, George Ritchie explore Bach’s Art of Fugue in its many facets. They discuss the piece itself, the instrument(s) that Bach may have written it for and the broader aspects of how this work advanced western music.
Enjoy this short clip from the documentary with George Ritchie describing his teacher, the legendary German organist, Helmut Walcha.