1-3-7-11 tetrads

These are the only 11-limit just intonation tetrads which have scale steps all larger than 11/10; they are the otonal, 1-9/8-11/8-7/4, with steps 9/8-11/9-14/11-8/7, and the utonal, 11/9-11/8-11/7-2, with steps 11/9-9/8-8/7-14/11.