1540/1539: Difference between revisions

From Xenharmonic Wiki
Jump to navigation Jump to search
Xenllium (talk | contribs)
Created page with "{{Infobox Interval | Name = kevolisma | Color name = 19u1ozy1, <br>nulozoyo 1sn, <br>Nulozoyo comma | Comma = yes }} '''1540/1539''', the '''kevolisma''', is a 19-limit ..."
 
Commatic relations: in terms of formal commas
 
(5 intermediate revisions by 2 users not shown)
Line 4: Line 4:
| Comma = yes
| Comma = yes
}}
}}
'''1540/1539''', the '''kevolisma''', is a [[19-limit]] [[Superparticular ratio|superparticular comma]] of about 1.12 [[cent]]s. It is the amount by which a stack consisting of [[6/5]], [[9/7]], [[12/11]] and [[19/16]] falls short of an [[octave]]. By tempering it out is defined the '''kevolismic temperament''', which enables the [[kevolismic chords]].
'''1540/1539''', the '''kevolisma''', is an [[unnoticeable comma|unnoticeable]] [[19-limit]] (specifically 2.3.5.7.11.19-[[subgroup]]) [[superparticular]] [[comma]] of about 1.12 [[cent]]s. It is the amount by which [[140/81]], a stack consisting of [[10/9]] and [[14/9]], exceeds [[19/11]]. It is also the amount by which a stack consisting of [[10/9]] and [[11/9]] exceeds [[19/14]], and by which a stack consisting of [[14/9]] and [[11/9]] exceeds [[19/10]].
 
== Commatic relations ==
This comma is the difference between the following superparticular pairs:
* [[55/54]] and [[57/56]] *
* [[77/76]] and [[81/80]] *
* [[154/153]] and [[171/170]]
* [[210/209]] and [[243/242]] *
* [[286/285]] and [[351/350]]
* [[343/342]] and [[441/440]] *
* [[352/351]] and [[456/455]]
* [[385/384]] and [[513/512]] *
* [[400/399]] and [[540/539]] *
* [[495/494]] and [[729/728]]
* [[595/594]] and [[969/968]]
* [[1216/1215]] and [[5776/5775]] *
* [[1225/1224]] and [[5985/5984]]
* [[1331/1330]] and [[9801/9800]] *
* [[1445/1444]] and [[23409/23408]]
* [[1521/1520]] and [[123201/123200]]
 
Or as a relation in the four formal commas defined by [[Functional Just System]] and [[Helmholtz–Ellis notation]]:
* ([[33/32]]) / ((81/80)([[64/63]])(513/512)).
 
It factors into the following superparticular pairs:
* [[3025/3024]] and [[3136/3135]] *
* [[2926/2925]] and [[3250/3249]]
* [[2431/2430]] and [[4200/4199]]
* [[2376/2375]] and [[4375/4374]] *
* [[2080/2079]] and [[5929/5928]]
* [[1729/1728]] and [[14080/14079]]
 
<nowiki/>* relation within the 2.3.5.7.11.19 subgroup
 
== Temperaments ==
By tempering it out is defined the '''kevolismic temperament''', which enables the [[kevolismic chords]].


== Etymology ==
== Etymology ==
The name ''kevolisma'' was named by [[User:Xenllium|Xenllium]] in 2023. It refers to [[Wikipedia:1540 Kevola|1540 Kevola]], the asteroid.
The name ''kevolisma'' was named by [[User:Xenllium|Xenllium]] in 2023. It refers to {{w|1540 Kevola}}, the asteroid, which in turn was named after an observatory in Finland.


== See also ==
== See also ==
* [[Unnoticeable comma]]
* [[List of superparticular intervals]]
* [[List of superparticular intervals]]


[[Category:Kevolismic]]
[[Category:Kevolismic]]
[[Category:Commas named after asteroids]]
[[Category:Commas named after place names]]

Latest revision as of 07:03, 5 December 2024

Interval information
Ratio 1540/1539
Factorization 22 × 3-4 × 5 × 7 × 11 × 19-1
Monzo [2 -4 1 1 1 0 0 -1
Size in cents 1.124543¢
Name kevolisma
Color name 19u1ozy1,
nulozoyo 1sn,
Nulozoyo comma
FJS name [math]\displaystyle{ \text{P1}^{5,7,11}_{19} }[/math]
Special properties superparticular,
reduced
Tenney norm (log2 nd) 21.1765
Weil norm (log2 max(n, d)) 21.1774
Wilson norm (sopfr(nd)) 58
Comma size unnoticeable
S-expression S55⋅S56
Open this interval in xen-calc

1540/1539, the kevolisma, is an unnoticeable 19-limit (specifically 2.3.5.7.11.19-subgroup) superparticular comma of about 1.12 cents. It is the amount by which 140/81, a stack consisting of 10/9 and 14/9, exceeds 19/11. It is also the amount by which a stack consisting of 10/9 and 11/9 exceeds 19/14, and by which a stack consisting of 14/9 and 11/9 exceeds 19/10.

Commatic relations

This comma is the difference between the following superparticular pairs:

Or as a relation in the four formal commas defined by Functional Just System and Helmholtz–Ellis notation:

It factors into the following superparticular pairs:

* relation within the 2.3.5.7.11.19 subgroup

Temperaments

By tempering it out is defined the kevolismic temperament, which enables the kevolismic chords.

Etymology

The name kevolisma was named by Xenllium in 2023. It refers to 1540 Kevola, the asteroid, which in turn was named after an observatory in Finland.

See also