636edo
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Prime factorization
22 × 3 × 53
Step size
1.88679¢
Fifth
372\636 (701.887¢) (→31\53)
Semitones (A1:m2)
60:48 (113.2¢ : 90.57¢)
Consistency limit
5
Distinct consistency limit
5
| ← 635edo | 636edo | 637edo → |
636 equal divisions of the octave (abbreviated 636edo or 636ed2), also called 636-tone equal temperament (636tet) or 636 equal temperament (636et) when viewed under a regular temperament perspective, is the tuning system that divides the octave into 636 equal parts of about 1.89 ¢ each. Each step represents a frequency ratio of 21/636, or the 636th root of 2.
Theory
636 = 12 × 53, and 636edo shares the excellent harmonic 3 with 53edo.
Odd harmonics
| Harmonic | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | absolute (¢) | -0.068 | +0.479 | -0.901 | -0.136 | -0.375 | -0.905 | +0.411 | +0.705 | +0.600 | +0.917 | +0.028 |
| relative (%) | -4 | +25 | -48 | -7 | -20 | -48 | +22 | +37 | +32 | +49 | +1 | |
| Steps (reduced) |
1008 (372) |
1477 (205) |
1785 (513) |
2016 (108) |
2200 (292) |
2353 (445) |
2485 (577) |
2600 (56) |
2702 (158) |
2794 (250) |
2877 (333) | |
Subsets and supersets
Since 636 factors into 22 × 3 × 53, 636edo has subset edos 2, 3, 4, 6, 12, 53, 106, 159, 212, and 318.