Original: Bach. The Art of the Fugue, BWV 1080, Part 1 - Contrapunctus I. The Art of the Fugue, BWV 1080, Part 1 - Contrapunctus II.
Translation: Brook. The Art of the Fugue, BWV 1080, Part 1 - Contrapunctus III. The Art of the Fugue, BWV 1080, Part 1 - Contrapunctus IV.