Betarabian comma: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| Ratio = 264627/262144 | | Ratio = 264627/262144 | ||
| Name = Betarabian comma | | Name = Betarabian comma | ||
| | | Comma = yes | ||
}} | }} | ||
The '''Betarabian comma''', at about 16.3[[Cent|¢]], is the interval '''264627/262144'''. It is the sum of the [[32805/32768|schisma]] and the [[121/120|biyatisma]], as well as the sum of the [[Alpharabian comma]] and the [[243/242|rastma]]. Furthermore, it forms the difference between various pairs of enharmonic quartertone-based intervals in no-fives no-sevens just 11-limit tuning. The term "Betarabian" is a derivative of "Alpharabian", and was coined on account of both the rastma being a comma which separates primary and secondary 11-limit intervals and the term "Alpharabian" itself containing the word "Alpha" within it. As the Betarabian comma is the sum of the Alpharabian comma and the rastma, it is automatically tempered out whenever the rastma is added to the list of commas tempered out among [[Alpharabian temperaments]], however, there are other temperaments that temper out just the Betarabian comma itself. | The '''Betarabian comma''', at about 16.3[[Cent|¢]], is the interval '''264627/262144'''. It is the sum of the [[32805/32768|schisma]] and the [[121/120|biyatisma]], as well as the sum of the [[Alpharabian comma]] and the [[243/242|rastma]]. Furthermore, it forms the difference between various pairs of enharmonic quartertone-based intervals in no-fives no-sevens just 11-limit tuning. The term "Betarabian" is a derivative of "Alpharabian", and was coined on account of both the rastma being a comma which separates primary and secondary 11-limit intervals and the term "Alpharabian" itself containing the word "Alpha" within it. As the Betarabian comma is the sum of the Alpharabian comma and the rastma, it is automatically tempered out whenever the rastma is added to the list of commas tempered out among [[Alpharabian temperaments]], however, there are other temperaments that temper out just the Betarabian comma itself. | ||
[[Category:Alpharabian]] | [[Category:Alpharabian]] | ||
Revision as of 17:28, 25 October 2022
| Interval information |
reduced harmonic
The Betarabian comma, at about 16.3¢, is the interval 264627/262144. It is the sum of the schisma and the biyatisma, as well as the sum of the Alpharabian comma and the rastma. Furthermore, it forms the difference between various pairs of enharmonic quartertone-based intervals in no-fives no-sevens just 11-limit tuning. The term "Betarabian" is a derivative of "Alpharabian", and was coined on account of both the rastma being a comma which separates primary and secondary 11-limit intervals and the term "Alpharabian" itself containing the word "Alpha" within it. As the Betarabian comma is the sum of the Alpharabian comma and the rastma, it is automatically tempered out whenever the rastma is added to the list of commas tempered out among Alpharabian temperaments, however, there are other temperaments that temper out just the Betarabian comma itself.