*Undecimal neutral sixth on C = A↓ (Ben Johnston's notation). 18:11 = 852.59 cents. Limit: 11-limit.
Author: Created by Hyacinth (talk) in Sibelius with midi pitch bend on 81 for 853.125 cents rather than 852.59. New version a m6 on 106,80 for 852.587890625 cents rather than 852.59.