127834/1: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| Name = 127834th harmonic, 29-wood major 119th | | Name = 127834th harmonic, 29-wood major 119th | ||
| Color name = c<sup>16</sup>397o23oz9 | |||
}} | }} | ||
127834/1, the '''127834th harmonic''', or '''29-wood supermajor 119th''', is 16 octaves above [[63917/32768]]. It is a part of 397-limit harmony, the 78th prime number. | 127834/1, the '''127834th harmonic''', or '''29-wood supermajor 119th''', is 16 octaves above [[63917/32768]]. It is a part of 397-limit harmony, the 78th prime number. | ||
The number appears in a sequence of fractional part of <math>1.5^n</math> decreasing monotonically to zero, meaning the sequence offers progressively closer approximations to repeated stacks of [[3/2]]. Indeed, this interval is close to a stack of perfect fifths by two parameters - both its fractional part decreases progressively, and it is also better than all the <math>1.5^k</math> for <math>0<k<29</math>. The difference between the | The number appears in a sequence of fractional part of <math>1.5^n</math> decreasing monotonically to zero, meaning the sequence offers progressively closer approximations to repeated stacks of [[3/2]]. Indeed, this interval is close to a stack of perfect fifths by two parameters - both its fractional part decreases progressively, and it is also better than all the <math>1.5^k</math> for <math>0<k<29</math>. The difference between the stack of 29 perfect fifths and 127834/1, which is the [[68630377364883/68630356164608]] comma is 0.534 millicents, or 1 in 2.24 million parts of an octave. | ||
== Equal divisions of the 127834/1 == | == Equal divisions of the 127834/1 == | ||
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* 261ed127834 - equivalent to [[Carlos Alpha]] | * 261ed127834 - equivalent to [[Carlos Alpha]] | ||
* 348ed127834 - equivalent to [[12edo]] | * 348ed127834 - equivalent to [[12edo]] | ||
== Trivia == | == Trivia == | ||
Prime numbers 23 and 397, having indices 9 and 78, are 69 prime numbers apart. Nice. | Prime numbers 23 and 397, having indices 9 and 78, are 69 prime numbers apart. Nice. | ||
== References == | == References == | ||
* | * {{OEIS|A081464}} | ||
* | * {{OEIS|A267122}} | ||