634edo
| This page presents a novelty topic.
It may contain ideas which are less likely to find practical applications in music, or numbers or structures that are arbitrary or exceedingly small, large, or complex. Novelty topics are often developed by a single person or a small group. As such, this page may also contain idiosyncratic terms, notation, or conceptual frameworks. |
| This page is a stub. You can help the Xenharmonic Wiki by expanding it. |
| ← 633edo | 634edo | 635edo → |
Theory
634edo is a good 13-limit and no-17 higher-limit system. It tempers out the [-53 10 16⟩ (kwazy comma); 420175/419904 (wizma), 703125/702464 (meter), and 33554432/33480783 (garischisma) in the 7-limit; 9801/9800, 19712/19683, 41503/41472 in the 11-limit; 1716/1715, 2080/2079, 4096/4095, 4225/4224, 14641/14625, and 31250/31213 in the 13-limit.
Prime harmonics
| Harmonic | 2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | +0.000 | +0.253 | -0.194 | +0.259 | -0.529 | -0.149 | -0.854 | -0.352 | +0.117 | +0.076 | +0.075 |
| Relative (%) | +0.0 | +13.4 | -10.2 | +13.7 | -28.0 | -7.9 | -45.1 | -18.6 | +6.2 | +4.0 | +4.0 | |
| Steps (reduced) |
634 (0) |
1005 (371) |
1472 (204) |
1780 (512) |
2193 (291) |
2346 (444) |
2591 (55) |
2693 (157) |
2868 (332) |
3080 (544) |
3141 (605) | |
Subsets and supersets
634edo has subset edos 2edo and 317edo.
Regular temperament properties
| Subgroup | Comma List | Mapping | Optimal 8ve Stretch (¢) |
Tuning Error | |
|---|---|---|---|---|---|
| Absolute (¢) | Relative (%) | ||||
| 2.3 | [1005 -634⟩ | [⟨634 1005]] | -0.0799 | 0.0799 | 4.22 |
| 2.3.5 | [-53 10 16⟩, [33 -34 9⟩ | [⟨634 1005 1472]] | -0.0254 | 0.1009 | 5.33 |
| 2.3.5.7 | 420175/419904, 703125/702464, 33554432/33480783 | [⟨634 1005 1472 1780]] | -0.0422 | 0.0921 | 4.86 |
| 2.3.5.7.11 | 9801/9800, 19712/19683, 41503/41472, 703125/702464 | [⟨634 1005 1472 1780 2193]] | -0.0031 | 0.1135 | 6.00 |
| 2.3.5.7.11.13 | 1716/1715, 2080/2079, 4096/4095, 14641/14625, 31250/31213 | [⟨634 1005 1472 1780 2193 2346]] | +0.0041 | 0.1048 | 5.54 |
Rank-2 temperaments
| Periods per 8ve |
Generator (Reduced) |
Cents (Reduced) |
Associated Ratio |
Temperaments |
|---|---|---|---|---|
| 1 | 241\634 | 456.15 | 125/96 | Qak |
| 1 | 263\634 | 497.79 | 4/3 | Gary |
| 2 | 86\634 | 162.78 | 1125/1024 | Kwazy |