513/512: Difference between revisions

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{{Infobox Interval
{{Infobox Interval
| Name = undevicesimal comma, undevicesimal schisma, Boethius' comma
| Name = undevicesimal comma, undevicesimal schisma, Boethius' comma
| Color name = L19o1, lano 1sn,<br>Lano comma
| Color name = L19o1, lano 1sn, <br>Lano comma
| Comma = yes
| Comma = yes
}}
}}


'''513/512''', the '''undevicesimal comma''', '''undevicesimal schisma''' or '''Boethius' comma''', is a [[19-limit]] (also 2.3.19 subgroup) unnoticeable comma. It is the amount by which [[19/16]] exceeds the [[32/27|Pythagorean minor third (32/27)]]. By tempering it out is defined the '''boethius temperament''', which enables the '''boethius chords'''. It is significant in [[Functional Just System]] and [[Helmholtz-Ellis notation]] as the formal comma to translate a Pythagorean interval to a nearby undevicesimal interval.  
'''513/512''', the '''undevicesimal comma''', '''undevicesimal schisma''' or '''Boethius' comma''', is a [[19-limit]] (also 2.3.19 subgroup) unnoticeable comma. It is the amount by which [[19/16]] exceeds the [[32/27|Pythagorean minor third (32/27)]]. By tempering it out is defined the '''boethius temperament''', which enables the '''[[boethius chords]]'''. It is significant in [[Functional Just System]] and [[Helmholtz-Ellis notation]] as the formal comma to translate a Pythagorean interval to a nearby undevicesimal interval.


== See also ==
== See also ==

Revision as of 03:48, 19 July 2023

Interval information
Ratio 513/512
Subgroup monzo 2.3.19 [-9 3 1
Size in cents 3.378019¢
Names undevicesimal comma,
undevicesimal schisma,
Boethius' comma
Color name L19o1, lano 1sn,
Lano comma
FJS name [math]\displaystyle{ \text{P1}^{19} }[/math]
Special properties superparticular,
reduced,
reduced harmonic
Tenney height (log2 nd) 18.0028
Weil height (log2 max(n, d)) 18.0056
Wilson height (sopfr(nd)) 46
Comma size unnoticeable
Open this interval in xen-calc

513/512, the undevicesimal comma, undevicesimal schisma or Boethius' comma, is a 19-limit (also 2.3.19 subgroup) unnoticeable comma. It is the amount by which 19/16 exceeds the Pythagorean minor third (32/27). By tempering it out is defined the boethius temperament, which enables the boethius chords. It is significant in Functional Just System and Helmholtz-Ellis notation as the formal comma to translate a Pythagorean interval to a nearby undevicesimal interval.

See also