121/120: Difference between revisions
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In [[Just Intonation]], 121/120 (the biyatisma) is a [[superparticular]] interval of around 14.4¢ which makes the difference between two undecimal neutral seconds of [[11/10]] and [[12/11]]. Temperaments in which 121/120 is tempered out include [[15edo|15]], [[22edo|22]], [[29edo|29]], [[31edo|31]], [[46edo|46]], [[53edo|53]] EDOs and others; in such systems, 11/10 and 12/11 are equated. This is in contrast to the more familiar tempering out of [[81/80]], which results in meantone and other temperaments, in which [[10/9]] is equated with [[9/8]]. Along with being the difference between 11/10 and 12/11, 121/120 is the difference between [[11/8]] and [[15/11]], so that tempering out 121/120 allows for the triad which has intervals of 11/8, 11/8, and 16/15. | In [[Just Intonation]], 121/120 (the biyatisma) is a [[superparticular]] interval of around 14.4¢ which makes the difference between two undecimal neutral seconds of [[11/10]] and [[12/11]]. Temperaments in which 121/120 is tempered out include [[15edo|15]], [[22edo|22]], [[29edo|29]], [[31edo|31]], [[46edo|46]], [[53edo|53]] EDOs and others; in such systems, 11/10 and 12/11 are equated. This is in contrast to the more familiar tempering out of [[81/80]], which results in meantone and other temperaments, in which [[10/9]] is equated with [[9/8]]. Along with being the difference between 11/10 and 12/11, 121/120 is the difference between [[11/8]] and [[15/11]], so that tempering out 121/120 allows for the triad which has intervals of 11/8, 11/8, and 16/15. | ||
See: [[ | See: [[Gallery of Just Intervals]] | ||
[[Category:11-limit]] | [[Category:11-limit]] | ||
[[Category:superparticular]] | [[Category:superparticular]] | ||