21/19: Difference between revisions

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{{Infobox Interval
{{Infobox Interval
| JI glyph =
| Name = hendrix major second, undevicesimal submajor second, undevicesimal supraneutral second
| Ratio = 21/19
| Color name = 19uz2, nuzo 2nd
| Monzo = 0 1 0 1 0 0 0 -1
| Cents = 173.26789
| Name = large neutral undevicesimal second
| Color name =  
| FJS name =
| Sound = ji-21-19-csound-foscil-220hz.mp3
| Sound = ji-21-19-csound-foscil-220hz.mp3
}}
}}


'''21/19''' is the '''large neutral undevicesimal second'''. Its [[octave complement]] is the minor neutral undevicesimal seventh [[38/21]].
In [[19-limit]] [[just intonation]], '''21/19''' is the '''hendrix major second''', also known as the '''undevicesimal submajor second''' or '''undevicesimal supraneutral second'''. It falls short of the [[9/8|Pythagorean major second (9/8)]] by a [[57/56|hendrix comma (57/56)]].  


See also: [[Gallery_of_Just_Intervals|Gallery of Just Intervals]]
== See also ==
* [[38/21]] – its [[octave complement]]
* [[19/14]] – its [[fifth complement]]
* [[Gallery of just intervals]]


[[Category:Just interval]]
[[Category:Second]]
[[Category:19-limit]]
[[Category:Neutral second]]
[[Category:Equable heptatonic]]
[[Category:Hendrix]]

Latest revision as of 07:55, 4 January 2024

Interval information
Ratio 21/19
Factorization 3 × 7 × 19-1
Monzo [0 1 0 1 0 0 0 -1
Size in cents 173.2679¢
Names hendrix major second,
undevicesimal submajor second,
undevicesimal supraneutral second
Color name 19uz2, nuzo 2nd
FJS name [math]\displaystyle{ \text{M2}^{7}_{19} }[/math]
Special properties reduced
Tenney height (log2 nd) 8.64024
Weil height (log2 max(n, d)) 8.78463
Wilson height (sopfr(nd)) 29

[sound info]
Open this interval in xen-calc

In 19-limit just intonation, 21/19 is the hendrix major second, also known as the undevicesimal submajor second or undevicesimal supraneutral second. It falls short of the Pythagorean major second (9/8) by a hendrix comma (57/56).

See also