151ed4

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← 149ed4151ed4153ed4 →
Prime factorization 151 (prime)
Step size 15.894¢ 
Octave 76\151ed4 (1207.95¢)
Twelfth 120\151ed4 (1907.28¢)
Consistency limit 1
Distinct consistency limit 1

151 equal divisions of the 4th harmonic (abbreviated 151ed4) is a nonoctave tuning system that divides the interval of 4/1 into 151 equal parts of about 15.9 ¢ each. Each step represents a frequency ratio of 41/151, or the 151st root of 4.

Harmonics

Approximation of harmonics in 151ed4
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) +7.95 +5.33 +0.00 -4.86 -2.62 +0.71 +7.95 -5.23 +3.09 -2.97 +5.33
Relative (%) +50.0 +33.5 +0.0 -30.6 -16.5 +4.5 +50.0 -32.9 +19.4 -18.7 +33.5
Steps
(reduced)
76
(76)
120
(120)
151
(0)
175
(24)
195
(44)
212
(61)
227
(76)
239
(88)
251
(100)
261
(110)
271
(120)
Approximation of harmonics in 151ed4
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) -6.09 -7.24 +0.47 +0.00 +6.30 +2.71 +4.47 -4.86 +6.04 +4.97 +7.49
Relative (%) -38.3 -45.5 +3.0 +0.0 +39.7 +17.1 +28.1 -30.6 +38.0 +31.3 +47.1
Steps
(reduced)
279
(128)
287
(136)
295
(144)
302
(0)
309
(7)
315
(13)
321
(19)
326
(24)
332
(30)
337
(35)
342
(40)