User:2^67-1/Ed12: Difference between revisions

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==Properties==
==Properties==


Division of 12 into equal parts does not necessarily imply directly using this interval as an [[equivalence]]. The question of equivalence has not even been posed yet. The utility of this interval as an equivalence, despite being irrational, is that it serves as two times the upper bound of the range of most peoples' voices, which the author takes to be about √12. The twelfth harmonic is pretty far as much as equivalences go, so here pure 3-smooth scales are required, leading the ratios to be square roots of 3-smooth integers or fractions. Taking √12 as the period gives us 2, 3, 4, 7, 11, and 18 note MOS-scales within the √12, or 4, 6, 8, 14, 22, or 36 note MOS-scales within the 12/1. This is the ''pochhammeroid temperament'', named by Cole.
Division of 12 into equal parts does not necessarily imply directly using this interval as an [[equivalence]]. The question of equivalence has not even been posed yet. The utility of this interval as an equivalence is that it serves as two times the upper bound of the range of most peoples' voices, which the author takes to be about √12. The twelfth harmonic is pretty far as much as equivalences go.


==Temperament families==
==Temperament families==