*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.
A sound file playing the interval of an augmented fifth, in equal temperment. The first tone is a sine wave at 300 Hz, the second is at 476.1 Hz, the last is the interval. Made with NCH Tone generator.
This is a recording of a Wolf Tone on the major sixth or seventh above the open G on a cello. I recorded this sound using an Azden SGM-X microphone and edited it in Audacity.