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• 03:58, 16 November 2025 Xenllium talk contribs created page 13ed4/3 (Created page with "{{Infobox ET}} '''13 equal divisions of the perfect fourth''' ('''13ed4/3''') is the tuning system that divides the fourth into 13 steps of 38.3112 cents each. It can be thought of as a 4/3.5/3.7/6 subgroup analogue to 9edf or Carlos Alpha. It very closely approximates the intervals of 8/7 (at 6 steps) and 7/6 (at 7 steps), along with 5/4 (at 10 steps); these approximations are related to the slender temperament, te...") Tags: Mobile edit Mobile web edit