91edo: Difference between revisions
→Scales: name it subset because the concoctic scale is only the 27 tone scale |
these aren't objective facts so moving them to miscellaneous properties |
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{{Infobox ET}} | {{Infobox ET}} | ||
The '''91 equal divisions of the octave''' ('''91edo'''), or '''91-tone equal temperament''' ('''91tet''', '''91et''') when viewed from a [[regular temperament]] perspective, divides the [[octave]] into 91 parts of 13.187 [[cent]]s each. | The '''91 equal divisions of the octave''' ('''91edo'''), or '''91-tone equal temperament''' ('''91tet''', '''91et''') when viewed from a [[regular temperament]] perspective, divides the [[octave]] into 91 parts of 13.187 [[cent]]s each. | ||
== Theory == | == Theory == | ||
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=== Odd harmonics === | === Odd harmonics === | ||
{{Harmonics in equal|91}} | {{Harmonics in equal|91}} | ||
=== Miscellaneous properties === | |||
91 is the smallest composite number whose composite character is not immediately evident in the decimal system; it is, in fact, the product of 7 and 13. | |||
Since the number 7 has historically represented luck, and the number 13 has always stood for bad luck, from an aesthetic standpoint, the factoring of 91 represents a kind of "yin-yang", a combination of opposites. | |||
== Regular temperament properties == | == Regular temperament properties == | ||