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• 23:04, 22 January 2026 Inthar talk contribs created page 21edo (Created page with "'''21edo''' is an equal division of the octave into 21 steps of 1200c/21 ~= 57.1c each. == Basic theory == === Intervals and notation === === Prime harmonic approximations === {{Harmonics in ED|21|31|0}} {{Cat|Edos}} ==== Edostep interpretations ==== 21edo's edostep has the following interpretations in the 2.3.5.7.23.29.31 subgroup: * 32/31 * 31/30 * 30/29 * 29/28 * 49/48 * 64/63")