188edt

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← 187edt 188edt 189edt →
Prime factorization 22 × 47
Step size 10.1168¢ 
Octave 119\188edt (1203.9¢)
Consistency limit 2
Distinct consistency limit 2

188 equal divisions of the tritave, perfect twelfth, or 3rd harmonic (abbreviated 188edt or 188ed3), is a nonoctave tuning system that divides the interval of 3/1 into 188 equal parts of about 10.1 ¢ each. Each step represents a frequency ratio of 31/188, or the 188th root of 3.

Harmonics

Approximation of harmonics in 188edt
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) +3.90 +0.00 -2.32 -4.20 +3.90 +0.06 +1.57 +0.00 -0.30 -3.44 -2.32
Relative (%) +38.5 +0.0 -23.0 -41.5 +38.5 +0.6 +15.6 +0.0 -3.0 -34.0 -23.0
Steps
(reduced)
119
(119)
188
(0)
237
(49)
275
(87)
307
(119)
333
(145)
356
(168)
376
(0)
394
(18)
410
(34)
425
(49)
Approximation of harmonics in 188edt
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) +0.74 +3.96 -4.20 -4.65 +1.68 +3.90 +1.35 +3.60 +0.06 +0.46 +4.44
Relative (%) +7.3 +39.1 -41.5 -45.9 +16.6 +38.5 +13.3 +35.5 +0.6 +4.5 +43.9
Steps
(reduced)
439
(63)
452
(76)
463
(87)
474
(98)
485
(109)
495
(119)
504
(128)
513
(137)
521
(145)
529
(153)
537
(161)