135/112: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| Name = septimal wide minor third, marvel-ptolemaic minor third, aberschismic augmented second | |||
| Color name = ry2, ruyo 2nd | |||
| Name = septimal wide minor third, | |||
| Color name = | |||
}} | }} | ||
'''135/112''', conventionally known as the '''septimal wide minor third''' or '''marvel-ptolemaic minor third''', is a [[7-limit]] interval that is sharp of the [[32/27|Pythagorean minor third]] by an [[3645/3584|aberdiesis (3645/3584)]], i.e. a [[81/80|syntonic comma (81/80)]] plus a [[225/224|marvel comma (225/224)]]. This interval functionally doubles as a type of augmented second, sharp of the [[19683/16384|Pythagorean augmented second (19683/16384)]] by an [[5120/5103|aberschisma (5120/5103)]]. This gives rise to the more precise name '''aberschismic augmented second'''. In fact it forms the difference between [[9/7]] and [[16/15]]. | |||
This interval has the distinction of being almost half of a [[16/11|undecimal semidiminished fifth (16/11)]] – in fact, a stack of two <u>135/112</u>'s differs from [[16/11]] by a [[200704/200475|"reef comma" (200704/200475)]], which is less than two cents in size. Because of the relationship between <u>135/112</u> and [[16/11]], one can easily form a triad consisting of 1–135/112–16/11, to which one can then add [[135/77]] as a seventh. | |||
== See also == | == See also == | ||
* [[224/135]] – its octave complement | |||
* [[56/45]] – its fifth complement | |||
* [[Gallery of just intervals]] | |||
[[Category:Third]] | |||
[[Category:Minor third]] | |||
[[Category:Second]] | |||
[[Category:Augmented second]] | |||
[[Category:Aberschismic]] | |||