189/187: Difference between revisions
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'''189/187''', or the '''chouten comma''' is a [[17-limit]] or 3.7.11.17-subgroup [[comma]] of about 18.42 [[cent]]s. | '''189/187''', or the '''chouten comma''' is a [[17-limit]] or 3.7.11.17-subgroup [[comma]] of about 18.42 [[cent]]s. | ||
This comma is the difference between [[21/11]] and [[17/9]], or [[11/9]] and [[21/17]], | This comma is the difference between [[21/11]] and [[17/9]], or [[11/9]] and [[21/17]], [[18/17]] and [[22/21]] etc. | ||
==Commatic relations== | ==Commatic relations== | ||
This comma is the sum of the following comma combinations: | This comma is the sum of the following comma combinations: | ||
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===[[S-expression]]=== | ===[[S-expression]]=== | ||
189/187 is a | 189/187 is a 1/4-square particulars which is S18*S19*S20*S21. | ||
==Temperament== | ==Temperament== | ||