494edo: Difference between revisions
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The '''494 equal temperament''' is a very strong [[13-limit|13]]- and [[17-limit]] equal temperament. | {{Infobox ET | ||
| Prime factorization = 2 × 13 × 19 | |||
| Step size = 2.42915¢ | |||
| Fifth = 289\494 (702.02¢) | |||
| Semitones = 47:37 (114.17¢ : 89.88¢) | |||
| Consistency = 17 | |||
}} | |||
The '''494 equal divisions of the octave''' ('''494edo'''), or the '''494(-tone) equal temperament''' ('''494tet''', '''494et''') when viewed from a [[regular temperament]] perspective, divides the [[octave]] into 494 [[equal]] parts of about 2.43 [[cent]]s each. It is a very strong [[13-limit|13]]- and [[17-limit]] equal temperament. The step size is close to [[729/728]], the squbema, and a step is a '''squb'''. | |||
== Theory == | |||
494edo is a [[The Riemann zeta function and tuning #Zeta EDO lists|zeta peak and zeta peak integer edo]] and uniquely [[consistent]] through the [[17-odd-limit]]. It [[tempering out|tempers out]] the [[enneadeca]], {{monzo| -14 -19 19 }}, the [[tricot comma]], {{monzo| 39 -29 3 }}, and the [[kwazy comma]], {{monzo| -53 10 16 }} in the [[5-limit]]. In the [[7-limit]], it tempers out [[4375/4374]] and [[703125/702464]]; in the [[11-limit]] [[3025/3024]] and [[9801/9800]]; in the [[13-limit]] [[1716/1715]], [[2080/2079]], [[4096/4095]], [[4225/4224]] and [[6656/6655]]; and in the 17-limit, [[1156/1155]], 1275/1274, 2431/2430, and 2500/2499. Not until [[1506edo|1506]] do we reach a division with a lower 13- or 17-limit [[Tenney-Euclidean temperament measures #TE simple badness|relative error]], and it is the first past [[72edo|72]] with a lower 17-limit relative error. 494 is divisible by 2, 13, 19, 26, 38 and 247. | |||
=== Prime harmonics === | |||
{{Harmonics in equal|494|prec=3}} | |||
== Intervals == | == Intervals == | ||
{{ | {{Main| Table of 494edo intervals }} | ||
[[Category:17-limit]] | [[Category:17-limit]] | ||