149edo

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149edo is the equal division of the octave into 149 equal parts of 8.054 cents each.

Theory

149edo is the smallest division which is uniquely consistent through the 17-odd-limit. It provides the optimal patent val for 7-, 11-, 13-, and 17-limit heinz temperament and the rank-3 temperament ominous in the 13- and 17-limits. It has a general flat tendency, with the fifth 1.28 cents flat, but the major third is a quarter of a cent sharp. In the 5-limit it tempers out the sensipent comma, 78732/78125; in the 7-limit, 1029/1024, 3136/3125 and 19683/19600; in the 11-limit 385/384 and 441/440; in the 13-limit 351/350 and 676/675; in the 17-limit 273/272 and 561/560; in the 19-limit 286/285 and 343/342.

149edo is the 35th prime EDO.

Prime harmonics

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Regular temperament properties

Subgroup Comma list Mapping Optimal
8ve stretch (¢)
Tuning error
Absolute (¢) Relative (%)
2.3 [-236 149 [149 236]] +0.405 0.405 5.03
2.3.5 78732/78125, [-34 20 1 [149 236 346]] +0.232 0.411 5.11
2.3.5.7 1029/1024, 3136/3125, 19683/19600 [149 236 346 418]] +0.386 0.445 5.53
2.3.5.7.11 385/384, 441/440, 3136/3125, 19683/19600 [149 236 346 418 515]] +0.521 0.481 5.97
2.3.5.7.11.13 351/350, 385/384, 441/440, 676/675, 847/845 [149 236 346 418 515 551]] +0.567 0.451 5.60
2.3.5.7.11.13.17 273/272, 351/350, 385/384, 441/440, 676/675, 847/845 [149 236 346 418 515 551 609]] +0.495 0.453 5.62

Rank-2 temperaments

Table of rank-2 temperaments by generator
Periods
per octave
Generator
(reduced)
Cents
(reduced)
Associated
ratio
Temperaments
1 3\149 24.16 686/675 Sengagen
1 16\149 128.86 14/13 Tertiathirds
1 18\149 144.97 49/45 Swetneus
1 24\149 193.29 28/25 Luna / hemithirds
1 29\149 233.56 8/7 Slendric
1 47\149 378.52 56/45 Subpental
1 55\149 442.95 162/125 Sensipent
1 57\149 459.06 125/96 Majvam
1 60\149 483.22 45/34 Hemiseven
1 61\149 491.28 3645/2744 Fifthplus
1 68\149 547.65 11/8 Heinz