3edf: Difference between revisions

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rewrite temperament interpretation; + harmonics
 
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{{Infobox ET}}
{{Infobox ET}}
'''3edf''', if the attempt is made to use it as an actual scale, would divide the [[just perfect fifth]] into three equal parts, each of size 233.985 cents, which is to say (3/2)<sup>1/3</sup> as a frequency ratio. It corresponds to 5.1285 [[edo]]. If we want to consider it to be a temperament, it tempers out [[16/15]], [[21/20]], [[28/27]], [[81/80]], and [[256/243]] as well as [[5edo]].
{{ED intro}}
 
== Theory ==
3edf, if the attempt is made to use it as an actual scale, would divide the [[just perfect fifth]] into three equal parts, each of size 233.985 cents, which is to say (3/2)<sup>1/3</sup> as a frequency ratio. It corresponds to 5.1285 [[edo]].
 
It can also be treated as a heavily compressed version of [[5edo]], with the octave compressed by about 30 cents. Its [[patent val]] matches that of 5edo up to the [[7-limit]], and thus tempers out the same commas.
 
=== Harmonics ===
{{Harmonics in equal|3|3|2}}


== Factoids about 3edf ==
== Factoids about 3edf ==
3edf's step size is close to the [[slendric]] temperament, which tempers out 1029/1024 in the 2.3.7 subgroup. It can be used as a slendric tuning. It also works well as a tuning for  
3edf is essentially equivalent to the [[slendric]] temperament, which tempers out 1029/1024 in the 2.3.7 subgroup, without octave repetition, and its step size is the 1/3-comma tuning of the slendric generator (approximated by, for instance, [[41edo|8\41]] and [[200edo|39\200]]). It also works well as a tuning for [[Extraclassical tonality|arto and tendo chords.]]


== Intervals ==
{| class="wikitable center-all"
{| class="wikitable center-all"
! #
! #
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| 1
| 1
| 233.99
| 233.99
|8/7
| [[8/7]]
|-
|-
| 2
| 2
| 467.97
| 467.97
|55/42
| [[21/16]], [[17/13]]
|-
|-
| 3
| 3
| 701.96
| 701.96
|exact 3/2
| exact [[3/2]]
|}
|}


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* [https://www.youtube.com/watch?v=0ecvufTJowE Sequences & Chaos] by Bazil Müzik
* [https://www.youtube.com/watch?v=0ecvufTJowE Sequences & Chaos] by Bazil Müzik


[[Category:Edf]]
[[Category:Edonoi]]
[[Category:Listen]]
[[Category:Listen]]