120/119: Difference between revisions

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New comma name "Lynchisma"
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| Monzo = 3 1 1 -1 0 0 -1
| Monzo = 3 1 1 -1 0 0 -1
| Cents = 14.48740
| Cents = 14.48740
| Name = suroyo comma
| Name = lynchisma
| Color name = suruyo negative 2nd, 17ury-2
| Color name = suruyo negative 2nd, 17ury-2
| FJS name = d-2<sup>5</sup><sub>7,17</sub>
| FJS name = d-2<sup>5</sup><sub>7,17</sub>
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'''120/119''' is a [[17-limit]] [[superparticular]] ratio of about 14.49 cents. It is the difference between [[20/17]] and [[7/6]], [[17/10]] and [[12/7]], or [[30/17]] and [[7/4]]. Tempering this comma allows you to assign 10:12:15:17 as the inverse of 4:5:6:7, a much simpler version of what would otherwise be 70:84:105:120. [[William Lynch's Thoughts on Septimal Harmony and 22 EDO|William Lynch]] calls this the minor tetrad, and so equating it with the inverse of the major tetrad is quite useful.
'''120/119''', the '''lynchisma''' is the [[17-limit]] [[superparticular]] comma of about 14.49 cents. It is the difference between [[20/17]] and [[7/6]], [[17/10]] and [[12/7]], or [[30/17]] and [[7/4]]. Tempering this comma allows you to assign 10:12:15:17 as the inverse of 4:5:6:7, a much simpler version of what would otherwise be 70:84:105:120. [[William Lynch's Thoughts on Septimal Harmony and 22 EDO|William Lynch]] calls this the minor tetrad, and so equating it with the inverse of the major tetrad is quite useful.
 
By tempering it out is defined the '''lynchismic temperament''', which enables the [[lynchismic chords]]. EDOs supporting this temperament includes {{EDOs|10, 12, 19, 22, 26, 31, 41}} and [[53edo|53]].


[[Category:17-limit]]
[[Category:17-limit]]
[[Category:Small comma]]
[[Category:Small comma]]
[[Category:Superparticular]]
[[Category:Superparticular]]

Revision as of 05:07, 19 March 2022

Interval information
Ratio 120/119
Factorization 23 × 3 × 5 × 7-1 × 17-1
Monzo [3 1 1 -1 0 0 -1
Size in cents 14.4874¢
Name lynchisma
Color name suruyo negative 2nd, 17ury-2
FJS name [math]\displaystyle{ \text{d}{-2}^{5}_{7,17} }[/math]
Special properties superparticular,
reduced
Tenney norm (log2 nd) 13.8017
Weil norm (log2 max(n, d)) 13.8138
Wilson norm (sopfr(nd)) 38
Open this interval in xen-calc

120/119, the lynchisma is the 17-limit superparticular comma of about 14.49 cents. It is the difference between 20/17 and 7/6, 17/10 and 12/7, or 30/17 and 7/4. Tempering this comma allows you to assign 10:12:15:17 as the inverse of 4:5:6:7, a much simpler version of what would otherwise be 70:84:105:120. William Lynch calls this the minor tetrad, and so equating it with the inverse of the major tetrad is quite useful.

By tempering it out is defined the lynchismic temperament, which enables the lynchismic chords. EDOs supporting this temperament includes 10, 12, 19, 22, 26, 31, 41 and 53.