99/98: Difference between revisions

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{{Infobox Interval
{{Infobox Interval
| Icon =
| Name = mothwellsma
| Ratio = 99/98
| Color name = 1orr-2, loruru negative<br>2nd, Loruru comma
| Monzo = -1 2 0 -2 1
| Comma = yes
| Cents = 17.57613
| Name = Mothwellsma
| Color name = 1orr-2, loruru comma
| FJS name = m-2<sup>11</sup><sub>49</sub>  
| Sound =  
}}
}}
'''99/98''', or the '''Mothwellsma''' (17.576 [[cent]]s in size), represents the difference between the [[9/7]] supermajor third and the [[14/11]] supermajor third, or the difference between two [[7/6]] subminor thirds and one [[11/8]] semi-augmented fourth.
'''99/98''', or the '''mothwellsma''', is a [[small comma|small]] [[11-limit]] [[comma]] of 17.6 [[cent]]s in size. It represents the difference between the [[9/7]] and [[14/11]] supermajor thirds, or the difference between two [[7/6]] subminor thirds and one [[11/8]] semi-augmented fourth. Note that 11/8 = (7/6)<sup>2</sup>(99/98) and that 7/6 × 99/98 = [[33/28]], which is the fifth complement of 14/11.
 
== Temperaments ==
Tempering out this comma alone in the 11-limit leads to the '''mothwellsmic temperament''' (→ [[Catalog of rank-4 temperaments #Mothwellsmic (99/98)]]) and enables [[mothwellsmic chords]]. It is related to 11-limit [[orwell]], as a generator between 7/6 and (11/8)<sup>1/2</sup> is befitting of orwell.
 
== Etymology ==
This comma's name comes from a contraction of ''mothra'' and ''orwell'', two of the rank-2 temperaments that temper out the comma.  


== See also ==
== See also ==
 
* [[99/49]] – the same interval but one octave higher
* [[Gallery of just intervals]]
* [[Gallery of just intervals]]
* [[Comma]]
[[Category:11-limit]]
[[Category:Small comma]]
[[Category:Interval ratio]]
[[Category:Superparticular]]


[[Category:Todo:expand]]
[[Category:Mothwellsmic]]
[[Category:Commas named by combining multiple temperament names]]