161/128: Difference between revisions

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{{Infobox Interval
{{Infobox Interval
| Ratio = 161/128
| Name = arithmetic mean major third, octave-reduced 161th harmonic
| Monzo = -7 0 0 1 0 0 0 0 1
| Cents = 397.100253738
| Name = just/Pythagorean major third meantone, octave-reduced 161th harmonic
| Color name = 23oz4
| Color name = 23oz4
}}
}}


In Just Intonation, 161/128 is the frequency ratio between the 161th and the 128th harmonic.
In [[just intonation]], '''161/128''', the '''arithmetic mean major third''' is the frequency ratio between the 161th and the 128th harmonic. It is the [[arithmetic mean]] between the [[5/4|just major third]] and the [[81/64|Pythagorean major third]]: (5/4 + 81/64)/2 = 161/128.  
 
It is the mean between the [[5/4|just major third]] and the [[81/64|Pythagorean major third]]: (5/4 + 81/64)/2 = 161/128.  


It can also be calculated from the [[81/80|syntonic comma]]: ((81/80 - 1)/2 + 1)⋅(5/4) = 161/128.  
It can also be calculated from the [[81/80|syntonic comma]]: ((81/80 - 1)/2 + 1)⋅(5/4) = 161/128.  


 
[[Category:Third]]
Its factorization into primes is 2<sup>-7</sup>⋅7⋅23; its FJS name is M3<sup>7,23</sup>.
[[Category:Major third]]