In Das Wohltemperirte Clavier - Pitch Tuning and Temperament Design, two related temperaments based on 1/14 and 1/15 Pythagorean Comma are described.  They provide a close approximation of the beats per second temperament and share many properties of the beat per second solution including monotonic major and minor thirds. A later paper, Proximity of Temperaments to Das Wohltemperierte Ideal, identified two 1/12 PC variants, one published for the first time. These temperaments are of theoretical interest.