3395edo: Difference between revisions

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{{Infobox ET}}
{{Infobox ET}}
The '''3395 equal divisions of the octave''' ('''3395edo''') divides the [[octave]] into 3395 [[equal]] steps of 0.35346 [[cent]]s each.
{{ED intro}}


3395edo is an extremely strong 17- and 19-limit system, and a [[The Riemann Zeta function and tuning #Zeta EDO lists|zeta peak, integral and gap edo]]. It has a lower 17-limit [[TE relative error]] than any edo until [[7033edo|7033]], and a lower 19-limit relative error than any edo until [[8269edo|8269]]. Besides, it provides the [[optimal patent val]] for the 13-limit rank-5 temperament tempering out [[6656/6655]], the jacobin comma. A basis for the 17-limit commas is {6656/6655, 12376/12375, 28561/28560, 31213/31212, 37180/37179, 937125/937024}, and for the 19-limit, {6656/6655, 12376/12375, 12636/12635, 13377/13376, 14365/14364, 23409/23408, 28561/28560}.
== Theory ==
3395edo is an extremely strong 17- and 19-limit system, and a [[The Riemann zeta function and tuning #Zeta EDO lists|zeta peak, integral, and gap edo]]. It has a lower 17-limit [[TE relative error]] than any edo until [[7033edo|7033]], and a lower 19-limit relative error than any edo until [[8269edo|8269]]. Besides, it provides the [[optimal patent val]] for the 13-limit rank-5 temperament tempering out [[6656/6655]], the jacobin comma, and for [[quartismic]], which also tempers out [[123201/123200]]. A basis for the 17-limit commas is {6656/6655, 12376/12375, 28561/28560, 31213/31212, 37180/37179, 937125/937024}, and for the 19-limit, {6656/6655, 12376/12375, 12636/12635, 13377/13376, 14365/14364, 23409/23408, 28561/28560}.


3395 = 5 × 7 × 97, with subset edos 5, 7, 35, 97, 485, and 679.
=== Prime harmonics ===
{{Harmonics in equal|3395|columns=11}}


{{Primes in edo|3395}}
=== Subsets and supersets ===
Since 3395 factors into {{factorization|3395}}, 3395edo has subset edos 5, 7, 35, 97, 485, and 679.
 
== Regular temperament properties ==
3395edo has a lower 17-limit [[TE relative error]] than any edo until [[7033edo|7033]], and a lower 19-limit relative error than any edo until [[8269edo|8269]].
 
=== Rank-2 temperaments ===
{| class="wikitable center-all left-5"
|+ style="font-size: 105%;" | Table of rank-2 temperaments by generator
|-
! Periods<br />per 8ve
! Generator*
! Cents*
! Associated<br />ratio*
! Temperaments
|-
| 1
| 2319\3395
| 819.676
| 55115776/34328125
| [[Genojacobin]]
|-
| 35
| 1409\3395<br />(51\3395)
| 498.027<br />(18.026)
| 4/3<br />(?)
| [[Bromine]]
|-
| 97
| 1409\3395<br />(9\3395)
| 498.027<br />(3.181)
| 4/3<br />(?)
| [[Berkelium]]
|}
<nowiki />* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if distinct


[[Category:Equal divisions of the octave|####]] <!-- 4-digit number -->
[[Category:Jacobin]]
[[Category:Jacobin]]
[[Category:Zeta]]
[[Category:Quartismic]]