38ed7/3: Difference between revisions
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{{Infobox ET}} | {{Infobox ET}} | ||
{{ED intro}} | |||
== Theory == | |||
While 38ed7/3 fails to accurately represent low [[prime interval|prime harmonics]], it provides great approximations of the [[13/1|13th]], [[17/1|17th]], [[19/1|19th]], and a multitude of higher primes, and also handles the interval of [[5/3]] well. But 38ed7/3 should, most of all, be noted for the exceptional quality of its approximation to [[11/9]], which is a mere 0.0088 cents off from just. Its natural subgroup in the [[19-limit]] is 5/3.7/3.11/9.13.17.19, but this can extend to include higher primes, especially [[29/1|29]], [[31/1|31]], and [[37/1|37]]. | |||
38ed7/3 possesses a shimmering octave at 31 steps in, therefore making this a potential octave-compressed version of [[31edo]], one that sacrifices its notable accuracy in the [[7-limit]] (though a number of 7-limit intervals are still portrayed passably due to the common flat tendency of harmonics 2, 3, 5, and 7) in favor of a huge number of high primes. | |||
=== Harmonics === | |||
{{Harmonics in equal|38|7|3|columns=11}} | |||
{{Harmonics in equal|38|7|3|columns=12|start=12|collapsed=1|title=Approximation of harmonics in 38ed7/3 (continued)}} | |||
== Intervals == | == Intervals == | ||
{| class="wikitable" | {| class="wikitable center-1 right-2" | ||
! | ! # | ||
! | ! Cents | ||
|- | |- | ||
| 1 | |||
| 38.6 | |||
|- | |- | ||
| | | 2 | ||
| | | 77.2 | ||
|- | |- | ||
| | | 3 | ||
| | | 115.8 | ||
|- | |- | ||
| | | 4 | ||
| 154.4 | |||
| | |||
|- | |- | ||
| | | 5 | ||
| 193.0 | |||
|- | |- | ||
| | | 6 | ||
| | | 231.6 | ||
|- | |- | ||
| | | 7 | ||
| 270.2 | |||
| | |||
|- | |- | ||
| | | 8 | ||
| | | 308.8 | ||
|- | |- | ||
| | | 9 | ||
| | | 347.4 | ||
|- | |- | ||
| | | 10 | ||
| | | 386.0 | ||
|- | |- | ||
| | | 11 | ||
| | | 424.6 | ||
|- | |- | ||
| | | 12 | ||
| | | 463.2 | ||
|- | |- | ||
| | | 13 | ||
| | | 502.7 | ||
|- | |- | ||
| | | 14 | ||
| | | 540.4 | ||
|- | |- | ||
| | | 15 | ||
| | | 579.0 | ||
|- | |- | ||
| | | 16 | ||
| | | 617.6 | ||
|- | |- | ||
| | | 17 | ||
| | | 656.2 | ||
|- | |- | ||
| | | 18 | ||
| | | 694.8 | ||
|- | |- | ||
| | | 19 | ||
| | | 733.4 | ||
|- | |- | ||
| | | 20 | ||
| | | 772.0 | ||
|- | |- | ||
| | | 21 | ||
| | | 810.6 | ||
|- | |- | ||
| | | 22 | ||
| | | 849.2 | ||
|- | |- | ||
| | | 23 | ||
| | | 887.8 | ||
|- | |- | ||
| | | 24 | ||
| | | 926.4 | ||
|- | |- | ||
| | | 25 | ||
| | | 965.0 | ||
|- | |- | ||
| | | 26 | ||
| | | 1003.6 | ||
|- | |- | ||
| | | 27 | ||
| | | 1042.3 | ||
|- | |- | ||
| | | 28 | ||
| 1080.9 | |||
| | |||
|- | |- | ||
| | | 29 | ||
| 1119.5 | |||
|- | |- | ||
| | | 30 | ||
| | | 1158.1 | ||
|- | |- | ||
| | | 31 | ||
| | | 1196.7 | ||
|- | |- | ||
| | | 32 | ||
| | | 1235.3 | ||
|- | |- | ||
| | | 33 | ||
| | | 1273.9 | ||
|- | |- | ||
| | | 34 | ||
| 1312.5 | |||
| | |||
|- | |- | ||
| | | 35 | ||
| 1351.1 | |||
|- | |- | ||
| | | 36 | ||
| | | 1389.7 | ||
|- | |- | ||
| | | 37 | ||
| | | 1428.3 | ||
|- | |- | ||
| 38 | |||
| 1466.9 | |||
|38 | |||
|1466. | |||
|} | |} | ||