5L 3s: Difference between revisions
m →Alterations: Clarity, link to term MODMOS Tags: Mobile edit Mobile web edit |
Since I brought this temperament up in the first place, might as well fill in the details here. |
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=== Buzzard (48&53) === | |||
In the broad sense, Buzzard can be viewed as any tuning that divides the 3rd harmonic into 4 equal parts. [[28edo]] and [[33edo]] can nominally be viewed as supporting it, but are still very flat and in an ambiguous zone between A-Team and true Buzzard in terms of harmonies. [[38edo]] & [[43edo]] are good compromises between melodic utility and harmonic accuracy, as the small step is still large enough to be obvious to the untrained ear, but [[48edo]] is where it really comes into it's own in terms of harmonies, providing not only an excellent [[3/2]], but also [[7/4]] and [[The_Archipelago|archipelago]] harmonies, as by dividing the 5th in 4 it obviously also divides it in two as well. Beyond that, it's a question of which intervals you want to favor. [[53edo]] has an essentially perfect [[3/2]], [[58edo]] gives the lowest overall error for the Barbados triads 10:13:15 and 26:30:39, while [[63edo]] does the same for the basic 4:6:7 triad. You could in theory go up to [[83edo]] if you want to favor the [[7/4]] above everything else, but beyond that, general accuracy drops off rapidly and you might as well be playing equal pentatonic. | |||
The sizes of the generator, large step and small step of oneirotonic are as follows in various buzzard tunings. | |||
{| class="wikitable right-2 right-3 right-4 right-5" | |||
|- | |||
! | |||
! [[38edo]] | |||
! [[53edo]] | |||
! [[63edo]] | |||
! Optimal ([[POTE]]) tuning | |||
! JI intervals represented (2.3.5.7.13 subgroup) | |||
|- | |||
| generator (g) | |||
| 15\38, 473.68 | |||
| 21\53, 475.47 | |||
| 25\63, 476.19 | |||
| 475.69 | |||
| 3/2 21/16 | |||
|- | |||
| L (3g - octave) | |||
| 7/38, 221.04 | |||
| 10/53, 226.41 | |||
| 12/63, 228.57 | |||
| 227.07 | |||
| 8/7 | |||
|- | |||
| s (-5g + 2 octaves) | |||
| 1/38 31.57 | |||
| 1/53 22.64 | |||
| 1/63 19.05 | |||
| 21.55 | |||
| 55/54 81/80 91/90 | |||
|} | |} | ||