# 141edo

 ← 140edo 141edo 142edo →
Prime factorization 3 × 47
Step size 8.51064¢
Fifth 82\141 (697.872¢)
Semitones (A1:m2) 10:13 (85.11¢ : 110.6¢)
Dual sharp fifth 83\141 (706.383¢)
Dual flat fifth 82\141 (697.872¢)
Dual major 2nd 24\141 (204.255¢) (→8\47)
Consistency limit 5
Distinct consistency limit 5

141 equal divisions of the octave (abbreviated 141edo or 141ed2), also called 141-tone equal temperament (141tet) or 141 equal temperament (141et) when viewed under a regular temperament perspective, is the tuning system that divides the octave into 141 equal parts of about 8.51 ¢ each. Each step represents a frequency ratio of 21/141, or the 141st root of 2.

141edo is inconsistent to the 5-odd-limit and harmonics 3 and 5 are about halfway between its steps. It has fairly good approximations to 7, 9, 11, 13, 15, 19, and 23, lending itself to a 2.9.15.7.11.13.19.23 subgroup interpretation, in which it is equivalent to every other step of the monstrous 282edo.

Using the 13-limit patent val nonetheless, it tempers out 78732/78125 (sensipent comma) and 8968066875/8589934592 (sentinel comma) in the 5-limit; 1728/1715, 3645/3584, and 78125/76832 in the 7-limit; 441/440, 1350/1331, 1944/1925, and 4125/4096 in the 11-limit; 144/143, 351/350, 640/637, 975/968, and 3375/3328 in the 13-limit. Using the alternative 141f val, it tempers out 169/168, 364/363, 625/624, 1287/1280, and 2025/2002 in the 13-limit. Using the alternative 141ef val, it tempers out 99/98, 243/242, 385/384, and 125000/124509 in the 11-limit; 169/168, 625/624, 1001/1000, and 1188/1183 in the 13-limit.

Using the 141def val, it tempers out 225/224, 84035/82944, and 177147/175000 in the 7-limit; 243/242, 1617/1600, 2079/2048, and 12005/11979 in the 11-limit; 351/350, 625/624, 847/845, 1573/1568, and 3185/3168 in the 13-limit.

Using the 141bc val, it tempers out 1638400/1594323 (immunity comma) and 50331648/48828125 (magus comma) in the 5-limit; 245/243, 28672/28125, and 50421/50000 in the 7-limit; 176/175, 1232/1215, 1331/1323, and 79233/78125 in the 11-limit; 196/195, 325/324, 364/363, 572/567, and 15379/15360 in the 13-limit.

Using the 141b val, it tempers out 2109375/2097152 (semicomma) and 244140625/229582512 in the 5-limit; 875/864, 16875/16807, and 65536/64827 in the 7-limit; 100/99, 385/384, 1331/1323, and 60368/59049 in the 11-limit; 275/273, 364/363, 572/567, 640/637, and 9604/9477 in the 13-limit.

### Odd harmonics

Approximation of odd harmonics in 141edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) -4.08 -3.33 +1.39 +0.35 +1.87 +2.03 +1.09 -2.83 +0.36 -2.70 +1.51
Relative (%) -48.0 -39.2 +16.3 +4.1 +22.0 +23.8 +12.8 -33.2 +4.2 -31.7 +17.8
Steps
(reduced)
223
(82)
327
(45)
396
(114)
447
(24)
488
(65)
522
(99)
551
(128)
576
(12)
599
(35)
619
(55)
638
(74)

### Subsets and supersets

Since 141 factors into 3 × 47, 141edo contains 3edo and 47edo as its subsets. 282edo, which doubles it, provides good correction for the approximation to harmonics 3 and 5.