Oorspronklik: Bach. The Art of the Fugue, BWV 1080, Part 2 - Contrapunctus XV, Canon in Augmentation and Inversion. Complete Works for Organ. Bach.
Vertaling: Spruit. Fantasie. Die kuns van die Fuga, BWV 1080, Deel 2 - Contrapunctus XV, Canon in Versterking en Inversie. Weergawe 2.0.
