12ed5: Difference between revisions
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{{Infobox ET}} | {{Infobox ET}} | ||
'''[[Ed5|Division of the 5th harmonic]] into 12 equal parts''' (12ed5) is related to the [[Meantone family|mothra temperament]] and the [[Semicomma family|quadrawell temperament]]. The step size about 232.1928 cents, corresponding to 5.1681 [[edo]]. This tuning has a meantone fifth as the number of divisions of the 5th harmonic is multiple of 4. | '''[[Ed5|Division of the 5th harmonic]] into 12 equal parts''' (12ed5) is related to the [[Meantone family|mothra temperament]] and the [[Semicomma family|quadrawell temperament]]. The step size about 232.1928 cents, corresponding to 5.1681 [[edo]], very nearly every 6th step of [[31edo]]. This tuning has a meantone fifth as the number of divisions of the 5th harmonic is multiple of 4. | ||
== Intervals == | == Intervals == | ||
Revision as of 22:11, 17 December 2024
| ← 11ed5 | 12ed5 | 13ed5 → |
Division of the 5th harmonic into 12 equal parts (12ed5) is related to the mothra temperament and the quadrawell temperament. The step size about 232.1928 cents, corresponding to 5.1681 edo, very nearly every 6th step of 31edo. This tuning has a meantone fifth as the number of divisions of the 5th harmonic is multiple of 4.
Intervals
| degree | cents value | corresponding JI intervals |
comments |
|---|---|---|---|
| 0 | 0.0000 | exact 1/1 | |
| 1 | 232.1928 | 8/7 | |
| 2 | 464.3856 | 17/13 | |
| 3 | 696.5784 | meantone fifth (pseudo-3/2) | |
| 4 | 928.7712 | 65/38 | |
| 5 | 1160.9640 | 45/23 | |
| 6 | 1393.1569 | 38/17, 85/38 | meantone major second plus an octave |
| 7 | 1625.3497 | 23/9 | |
| 8 | 1857.5425 | 38/13 | |
| 9 | 2089.7353 | meantone major sixth plus an octave (pseudo-10/3) | |
| 10 | 2321.9281 | 65/17 | |
| 11 | 2554.1209 | 35/8 | |
| 12 | 2786.3137 | exact 5/1 | just major third plus two octaves |
Harmonics
| Harmonic | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | -39 | -44 | -78 | +0 | -83 | +114 | +115 | -89 | -39 | +28 | +110 |
| Relative (%) | -16.8 | -19.1 | -33.6 | +0.0 | -35.9 | +49.1 | +49.6 | -38.3 | -16.8 | +12.1 | +47.2 | |
| Steps (reduced) |
5 (5) |
8 (8) |
10 (10) |
12 (0) |
13 (1) |
15 (3) |
16 (4) |
16 (4) |
17 (5) |
18 (6) |
19 (7) | |
| Harmonic | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | -29 | +75 | -44 | +76 | -29 | +104 | +11 | -78 | +70 | -11 | -88 |
| Relative (%) | -12.4 | +32.3 | -19.1 | +32.8 | -12.4 | +44.9 | +4.6 | -33.6 | +30.0 | -4.7 | -37.8 | |
| Steps (reduced) |
19 (7) |
20 (8) |
20 (8) |
21 (9) |
21 (9) |
22 (10) |
22 (10) |
22 (10) |
23 (11) |
23 (11) |
23 (11) | |