Sooty fox chords

Sooty fox chords are essentially tempered chords tempered by the sooty fox comma, 343/338.

Sooty fox chords are essentially tempered chords for 2.7.13 subgroup, consisting of the sooty fox triad, 1–14/13–8/7 (with steps of 14/13, 14/13, 7/4), and the sooty fox tetrad, 1–14/13–8/7–16/13 (with steps of 14/13, 14/13, 14/13, 13/8).

It is natural to temper out the marvel comma alongside the sooty fox comma, in which case both chords become 15-odd-limit essentially just chords.

Equal temperaments with sooty fox chords include 9, 10, 11, 19, 21, 31, and 41.