624edo: Difference between revisions
→Theory: + second harmonics table |
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624edo is [[consistent]] to the [[27-odd-limit]]. As an equal temperament, it [[tempering out|tempers out]] {{monzo| 23 6 -14 }} ([[vishnuzma]]) and {{monzo| -69 45 -1 }} ([[counterschisma]]) in the [[5-limit]]; [[250047/250000]], [[2460375/2458624]], and 134217728/133984375 in the [[7-limit]]; [[9801/9800]], 46656/46585, [[131072/130977]], and [[151263/151250]] in the [[11-limit]]; [[1716/1715]], [[2080/2079]], [[4096/4095]], 34398/34375, and 39366/39325 in the [[13-limit]]; [[936/935]], [[1701/1700]], [[2025/2023]], and [[2058/2057]] in the [[17-limit]]; [[1521/1520]], [[2376/2375]], [[2432/2431]], and 3328/3325 in the [[19-limit]]; [[2024/2023]], [[2025/2024]], [[2646/2645]], [[3520/3519]], and [[3888/3887]] in the [[23-limit]]. | 624edo is [[consistent]] to the [[27-odd-limit]]. As an equal temperament, it [[tempering out|tempers out]] {{monzo| 23 6 -14 }} ([[vishnuzma]]) and {{monzo| -69 45 -1 }} ([[counterschisma]]) in the [[5-limit]]; [[250047/250000]], [[2460375/2458624]], and 134217728/133984375 in the [[7-limit]]; [[9801/9800]], 46656/46585, [[131072/130977]], and [[151263/151250]] in the [[11-limit]]; [[1716/1715]], [[2080/2079]], [[4096/4095]], 34398/34375, and 39366/39325 in the [[13-limit]]; [[936/935]], [[1701/1700]], [[2025/2023]], and [[2058/2057]] in the [[17-limit]]; [[1521/1520]], [[2376/2375]], [[2432/2431]], and 3328/3325 in the [[19-limit]]; [[2024/2023]], [[2025/2024]], [[2646/2645]], [[3520/3519]], and [[3888/3887]] in the [[23-limit]]. | ||
It provides an excellent [[optimal patent val]] for the rank-6 temperament tempering out 936/935, as well as the rank-5 | It provides an excellent [[optimal patent val]] for the rank-6 temperament tempering out 936/935, as well as the rank-5 no-7 [[retraction]] thereof. | ||
=== Prime harmonics === | === Prime harmonics === | ||
| Line 20: | Line 20: | ||
! rowspan="2" | [[Comma list]] | ! rowspan="2" | [[Comma list]] | ||
! rowspan="2" | [[Mapping]] | ! rowspan="2" | [[Mapping]] | ||
! rowspan="2" | Optimal<br | ! rowspan="2" | Optimal<br>8ve stretch (¢) | ||
! colspan="2" | Tuning error | ! colspan="2" | Tuning error | ||
|- | |- | ||
| Line 27: | Line 27: | ||
|- | |- | ||
| 2.3 | | 2.3 | ||
| {{ | | {{Monzo| -989 624 }} | ||
| {{ | | {{Mapping| 624 989 }} | ||
| +0.0101 | | +0.0101 | ||
| 0.0101 | | 0.0101 | ||
| Line 34: | Line 34: | ||
|- | |- | ||
| 2.3.5 | | 2.3.5 | ||
| {{ | | {{Monzo| 23 6 -14 }}, {{monzo| -69 45 -1 }} | ||
| {{ | | {{Mapping| 624 989 1449 }} | ||
| −0.0256 | | −0.0256 | ||
| 0.0510 | | 0.0510 | ||
| Line 41: | Line 41: | ||
|- | |- | ||
| 2.3.5.7 | | 2.3.5.7 | ||
| 250047/250000, 2460375/2458624, | | 250047/250000, 2460375/2458624, 134217728/133984375 | ||
| {{ | | {{Mapping| 624 989 1449 1752 }} | ||
| −0.0552 | | −0.0552 | ||
| 0.0678 | | 0.0678 | ||
| Line 49: | Line 49: | ||
| 2.3.5.7.11 | | 2.3.5.7.11 | ||
| 9801/9800, 46656/46585, 131072/130977, 151263/151250 | | 9801/9800, 46656/46585, 131072/130977, 151263/151250 | ||
| {{ | | {{Mapping| 624 989 1449 1752 2159 }} | ||
| −0.0792 | | −0.0792 | ||
| 0.0772 | | 0.0772 | ||
| Line 56: | Line 56: | ||
| 2.3.5.7.11.13 | | 2.3.5.7.11.13 | ||
| 1716/1715, 2080/2079, 4096/4095, 34398/34375, 39366/39325 | | 1716/1715, 2080/2079, 4096/4095, 34398/34375, 39366/39325 | ||
| {{ | | {{Mapping| 624 989 1449 1752 2159 2309 }} | ||
| −0.0595 | | −0.0595 | ||
| 0.0831 | | 0.0831 | ||
| Line 63: | Line 63: | ||
| 2.3.5.7.11.13.17 | | 2.3.5.7.11.13.17 | ||
| 936/935, 1701/1700, 1716/1715, 2025/2023, 4096/4095, 11016/11011 | | 936/935, 1701/1700, 1716/1715, 2025/2023, 4096/4095, 11016/11011 | ||
| {{ | | {{Mapping| 624 989 1449 1752 2159 2309 2551 }} | ||
| −0.0795 | | −0.0795 | ||
| 0.0911 | | 0.0911 | ||
| Line 70: | Line 70: | ||
| 2.3.5.7.11.13.17.19 | | 2.3.5.7.11.13.17.19 | ||
| 936/935, 1521/1520, 1701/1700, 1716/1715, 2025/2023, 2376/2375, 11016/11011 | | 936/935, 1521/1520, 1701/1700, 1716/1715, 2025/2023, 2376/2375, 11016/11011 | ||
| {{ | | {{Mapping| 624 989 1449 1752 2159 2309 2551 2651 }} | ||
| −0.0861 | | −0.0861 | ||
| 0.0870 | | 0.0870 | ||
| Line 77: | Line 77: | ||
| 2.3.5.7.11.13.17.19.23 | | 2.3.5.7.11.13.17.19.23 | ||
| 936/935, 1521/1520, 1701/1700, 1716/1715, 2024/2023, 2025/2023, 2376/2375, 2646/2645 | | 936/935, 1521/1520, 1701/1700, 1716/1715, 2024/2023, 2025/2023, 2376/2375, 2646/2645 | ||
| {{ | | {{Mapping| 624 989 1449 1752 2159 2309 2551 2651 2823 }} | ||
| −0.0906 | | −0.0906 | ||
| 0.0830 | | 0.0830 | ||
| Line 87: | Line 87: | ||
|+ style="font-size: 105%;" | Table of rank-2 temperaments by generator | |+ style="font-size: 105%;" | Table of rank-2 temperaments by generator | ||
|- | |- | ||
! Periods<br | ! Periods<br>per 8ve | ||
! Generator* | ! Generator* | ||
! Cents* | ! Cents* | ||
! Associated<br | ! Associated<br>ratio* | ||
! Temperaments | ! Temperaments | ||
|- | |- | ||
| Line 118: | Line 118: | ||
|- | |- | ||
| 6 | | 6 | ||
| 177\624<br | | 177\624<br>(31\624) | ||
| 340.38<br | | 340.38<br>(59.62) | ||
| 162/133<br | | 162/133<br>(88/85) | ||
| [[Semiseptichrome]] | | [[Semiseptichrome]] | ||
|- | |- | ||
| 12 | | 12 | ||
| 259\624<br | | 259\624<br>(1\624) | ||
| 498.08<br | | 498.08<br>(1.92) | ||
| 4/3<br | | 4/3<br>(32805/32768) | ||
| [[Atomic]] | | [[Atomic]] | ||
|- | |- | ||
| 13 | | 13 | ||
| 259\624<br | | 259\624<br>(19\624) | ||
| 498.08<br | | 498.08<br>(36.54) | ||
| 4/3<br | | 4/3<br>(?) | ||
| [[Aluminium]] (5-limit) | | [[Aluminium]] (5-limit) | ||
|- | |- | ||
| 16 | | 16 | ||
| 259\624<br | | 259\624<br>(14\624) | ||
| 498.08<br | | 498.08<br>(48.077) | ||
| 4/3<br | | 4/3<br>(?) | ||
| [[Sulfur]] | | [[Sulfur]] | ||
|- | |- | ||
| 24 | | 24 | ||
| 303\624<br | | 303\624<br>(9\624) | ||
| 582. | | 582.69<br>(17.31) | ||
| 7/5<br | | 7/5<br>(100/99) | ||
| [[Chromium]] | | [[Chromium]] | ||
|- | |- | ||
| 26 | | 26 | ||
| 259\624<br | | 259\624<br>(19\624) | ||
| 498.08<br | | 498.08<br>(36.54) | ||
| 4/3<br | | 4/3<br>(?) | ||
| [[Iron]] | | [[Iron]] | ||
|} | |} | ||