297/256: Difference between revisions

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'''297/256''', the '''Alpharabian ultramajor second''', is the basic ultramajor second in the 2.3.11 [[subgroup]].  It differs from the [[22/19]] undevicesimal semifourth by [[513/512]], and differs from [[7/6]] by [[896/891]].  As suggested by its name, it is reached by tacking a [[33/32]] quartertone onto [[9/8]].
'''297/256''', the '''Alpharabian ultramajor second''', is the basic ultramajor second in the 2.3.11 [[subgroup]].  It differs from the [[22/19]] undevicesimal semifourth by [[513/512]], and differs from [[7/6]] by [[896/891]].  As suggested by its name, it is reached by tacking a [[33/32]] quartertone onto [[9/8]].


In tonal music, it is a useful paradiatonic interval, as a 1/1-27/22-16/11-512/297 chord can be built on top of a note situated at this distance from the Tonic, and this chord can lead into a 1/1-6/5-3/2 triad built on the note located at 5/4 above the Tonic.
In tonal music, it is a useful paradiatonic interval, as a 1/1-27/22-16/11-512/297 chord can be built on top of a note situated at this distance from the Tonic, and this chord can lead into a 1/1-6/5-3/2 triad built on the note located at 5/4 above the Tonic.  As if that weren't enough, Kyle Gann had reason to use this interval [https://kylegann.com/DifferentServingofTapioca.pdf in his music].


== See also ==
== See also ==
* [[512/297]] – its [[octave complement]]
* [[512/297]] – its [[octave complement]]
* [[Gallery of just intervals]]
* [[Gallery of just intervals]]

Revision as of 16:26, 8 May 2025

Interval information
Ratio 297/256
Factorization 2-8 × 33 × 11
Monzo [-8 3 0 0 1
Size in cents 257.1829¢
Name Alpharabian ultramajor second
Color name L1o2, lalo 2nd
FJS name [math]\displaystyle{ \text{M2}^{11} }[/math]
Special properties reduced,
reduced harmonic
Tenney height (log2 nd) 16.2143
Weil height (log2 max(n, d)) 16.4286
Wilson height (sopfr(nd)) 36
Open this interval in xen-calc

297/256, the Alpharabian ultramajor second, is the basic ultramajor second in the 2.3.11 subgroup. It differs from the 22/19 undevicesimal semifourth by 513/512, and differs from 7/6 by 896/891. As suggested by its name, it is reached by tacking a 33/32 quartertone onto 9/8.

In tonal music, it is a useful paradiatonic interval, as a 1/1-27/22-16/11-512/297 chord can be built on top of a note situated at this distance from the Tonic, and this chord can lead into a 1/1-6/5-3/2 triad built on the note located at 5/4 above the Tonic. As if that weren't enough, Kyle Gann had reason to use this interval in his music.

See also