88edo: Difference between revisions

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{{Infobox ET}}
{{Infobox ET}}
In music, '''88 equal temperament''' is the scale derived by dividing the octave into 88 equally large steps, 13.6363 [[cent|cent]]s in size. Using two different approximations to the perfect fifth (one of 51 steps and one of 52 steps), it is compatible with both [[Meantone|meantone temperament]] and the particular variety of [[Superpyth|superpyth]] temperament(s) supported by [[22edo|22 equal temperament]], respectively. The meantone fifth is 0.0384 cents flatter than that of [[Lucy_Tuning|Lucy Tuning]] and, thus, audibly indistinguishable from it. It also gives the [[Optimal_patent_val|optimal patent val]] for the 11-limit [[Meantone_family|mothra]] and [[Didymus_rank_three_family|euterpe]] temperaments.
{{EDO intro|88}}
 
== Theory ==
Using two different approximations to the perfect fifth (one of 51 steps and one of 52 steps), it is compatible with both [[Meantone|meantone temperament]] and the particular variety of [[superpyth]] temperament(s) supported by [[22edo|22 equal temperament]], respectively. The meantone fifth is 0.0384 cents flatter than that of [[Lucy Tuning]] and, thus, audibly indistinguishable from it. It also gives the [[optimal patent val]] for the 11-limit [[Meantone_family|mothra]] and [[Didymus_rank_three_family|euterpe]] temperaments.
 
=== Odd harmonics ===
{{Harmonics in equal|88}}
{{Harmonics in equal|88}}


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[[Category:Meantone]]
[[Category:Meantone]]
[[Category:Mothra]]
[[Category:Mothra]]
[[Category:Dual-fifth]]

Revision as of 22:33, 28 November 2022

← 87edo 88edo 89edo →
Prime factorization 23 × 11
Step size 13.6364 ¢ 
Fifth 51\88 (695.455 ¢)
Semitones (A1:m2) 5:9 (68.18 ¢ : 122.7 ¢)
Dual sharp fifth 52\88 (709.091 ¢) (→ 13\22)
Dual flat fifth 51\88 (695.455 ¢)
Dual major 2nd 15\88 (204.545 ¢)
Consistency limit 7
Distinct consistency limit 7

Template:EDO intro

Theory

Using two different approximations to the perfect fifth (one of 51 steps and one of 52 steps), it is compatible with both meantone temperament and the particular variety of superpyth temperament(s) supported by 22 equal temperament, respectively. The meantone fifth is 0.0384 cents flatter than that of Lucy Tuning and, thus, audibly indistinguishable from it. It also gives the optimal patent val for the 11-limit mothra and euterpe temperaments.

Odd harmonics

Approximation of odd harmonics in 88edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) -6.50 -4.50 -0.64 +0.64 -5.86 +4.93 +2.64 +4.14 +2.49 +6.49 -1.00
Relative (%) -47.7 -33.0 -4.7 +4.7 -43.0 +36.1 +19.4 +30.3 +18.2 +47.6 -7.3
Steps
(reduced)
139
(51)
204
(28)
247
(71)
279
(15)
304
(40)
326
(62)
344
(80)
360
(8)
374
(22)
387
(35)
398
(46)