129ed12: Difference between revisions

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129ED12 is very nearly identical to [[36edo]] (sixth-tone tuning), but with the [[12/1]] rather than the 2/1 being just. The octave is stretched by 0.55[[cent]]s.
== Theory ==
129ed12 is very nearly identical to [[36edo]] (sixth-tone tuning), but with the 12th harmonic rather than the [[2/1|octave]] being just. This stretches the octave by about 0.546{{c}}. The local [[The Riemann zeta function and tuning #Optimal octave stretch|zeta peak]] around 36 is located at 35.982388, which has a step size of 33.3496{{c}} and has octaves stretched by 0.587{{c}}; 129ed12's octave is extremely close to optimal, being only 0.0418{{c}} ({{sfrac|1|23}} of a cent) off from the zeta peak.


Lookalikes: [[21edf]], [[36edo]], [[57edt]], [[93ed6]], [[101ed7]]
=== Harmonics ===
{{Harmonics in equal|129|12|1|intervals=integer|columns=11}}
{{Harmonics in equal|129|12|1|intervals=integer|columns=12|start=12|collapsed=true|title=Approximation of harmonics in 129ed12 (continued)}}


== Harmonics ==
=== Subsets and supersets ===
{{Harmonics in equal|129|12|1|prec=2|columns=15}}
Since 129 factors into primes as {{nowrap| 3 × 43 }}, 129ed12 contains subset ed12's [[3ed12]] and [[43ed12]].


[[Category:Edonoi]]
== See also ==
* [[21edf]] – relative edf
* [[36edo]] – relative edo
* [[57edt]] – relative edt
* [[93ed6]] – relative ed6
* [[101ed7]] – relative ed7
 
[[Category:36edo]]
[[Category:Zeta-optimized tunings]]