78/71
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| Ratio | 78/71 |
| Subgroup monzo | 2.3.13.71 [1 1 1 -1⟩ |
| Size in cents | 162.78612¢ |
| Name | porcupine neutral second |
| Color name | 71u3o2, fitwewutho 2nd/seventy-wutho 2nd |
| FJS name | [math]\text{m2}^{13}_{71}[/math] |
| Special properties | reduced |
| Tenney height (log2 nd) | 12.4351 |
| Weil height (log2 max(n, d)) | 12.5708 |
| Wilson height (sopfr(nd)) | 89 |
| Harmonic entropy (Shannon, [math]\sqrt{nd}[/math]) |
~4.22465 bits |
[sound info] | |
| open this interval in xen-calc | |
The porcupine neutral second, 78/71 = 2 ⋅ 3 ⋅ 13 ⋅ 71−1, provides a good generator for porcupine temperament. It is between 3\22 and 8\59, and leads to a fifth of 711.642 cents, which is 9.687 cents sharp of 3/2.