Experiments in just intonation.

12/12 (1/1) - unison 13/12 - neutral second 14/12 (7/6) - subminor third 15/12 (5/4) - major third 16/12 (4/3) - perfect fourth 17/12 - larger septendecimal tritone 18/12 (3/2) - perfect fifth 19/12 - large undevicesimal minor sixth 20/12 (5/3) - major sixth 21/12 (7/4) - harmonic seventh 22/12 - undecimal neutral seventh 23/12 - vicesimotertial major seventh 24/12 (2/1) - octave

Read more: http://www.ethanhein.com/wp/2021/i-made-some-music-in-exotic-just-intonation-tunings-because-why-not/