129ed12: Difference between revisions

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{{Infobox ET}}
{{Infobox ET}}
'''[[Ed12|Division of the twelfth harmonic]] into 129 equal parts''' (129ED12) is very nearly identical to [[36edo|36 EDO]] (sixth-tone tuning), but with the [[12/1]] rather than the 2/1 being just. The octave is about 0.55 [[cent]]s stretched and the step size is about 33.35 cents.
{{ED intro}}


==Harmonics==
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.
 
== Harmonics ==
{{Harmonics in equal|129|12|1|prec=2|columns=15}}
{{Harmonics in equal|129|12|1|prec=2|columns=15}}


[[Category:Edonoi]]
[[Category:Edonoi]]

Revision as of 17:21, 21 January 2025

← 128ed12 129ed12 130ed12 →
Prime factorization 3 × 43
Step size 33.3485 ¢ 
Octave 36\129ed12 (1200.55 ¢) (→ 12\43ed12)
Twelfth 57\129ed12 (1900.86 ¢) (→ 19\43ed12)
Consistency limit 8
Distinct consistency limit 8

129 equal divisions of the 12th harmonic (abbreviated 129ed12) is a nonoctave tuning system that divides the interval of 12/1 into 129 equal parts of about 33.3 ¢ each. Each step represents a frequency ratio of 121/129, or the 129th root of 12.

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 0.55cents.

Harmonics

Approximation of harmonics in 129ed12
Harmonic 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Error Absolute (¢) +0.55 -1.09 +1.09 +14.96 -0.55 -0.63 +1.64 -2.18 +15.50 -16.11 +0.00 -5.18 -0.08 +13.87 +2.18
Relative (%) +1.6 -3.3 +3.3 +44.9 -1.6 -1.9 +4.9 -6.5 +46.5 -48.3 +0.0 -15.5 -0.2 +41.6 +6.5
Steps
(reduced)
36
(36)
57
(57)
72
(72)
84
(84)
93
(93)
101
(101)
108
(108)
114
(114)
120
(120)
124
(124)
129
(0)
133
(4)
137
(8)
141
(12)
144
(15)