17edo: Difference between revisions

Improve intro
mNo edit summary
Line 80: Line 80:
Instead, the tonic chords of 17-EDO could be considered to be the tetrad 6:7:8:9 and its utonal inversion, the former of which is a subminor chord with added fourth, and the latter a supermajor chord with added second (resembling the [https://en.wikipedia.org/wiki/Mu_chord mu chord] of Steely Dan fame). These are realized in 17-EDO as 0-4-7-10 and 0-3-6-10, respectively. Both of these have distinct moods, and are stable and consonant, if somewhat more sophisticated than their classic 5-limit counterparts. To this group we could also add the 0-3-7-10 (which is a sus4 with added second, or sus2 with added fourth). These three chords comprise the three ways to divide the 17-EDO perfect fifth into two whole tones and one subminor third. Chromatic alterations of them also exist, for example, the 0-3-7-10 chord may be altered to 0-2-7-10 (which approximates 12:13:16:18) or 0-3-8-10 (which approximates 8:9:11:12). The 0-3-8-10 chord is impressive-sounding, resembling a sus4 but with even more tension; it resolves quite nicely to 0-3-6-10.
Instead, the tonic chords of 17-EDO could be considered to be the tetrad 6:7:8:9 and its utonal inversion, the former of which is a subminor chord with added fourth, and the latter a supermajor chord with added second (resembling the [https://en.wikipedia.org/wiki/Mu_chord mu chord] of Steely Dan fame). These are realized in 17-EDO as 0-4-7-10 and 0-3-6-10, respectively. Both of these have distinct moods, and are stable and consonant, if somewhat more sophisticated than their classic 5-limit counterparts. To this group we could also add the 0-3-7-10 (which is a sus4 with added second, or sus2 with added fourth). These three chords comprise the three ways to divide the 17-EDO perfect fifth into two whole tones and one subminor third. Chromatic alterations of them also exist, for example, the 0-3-7-10 chord may be altered to 0-2-7-10 (which approximates 12:13:16:18) or 0-3-8-10 (which approximates 8:9:11:12). The 0-3-8-10 chord is impressive-sounding, resembling a sus4 but with even more tension; it resolves quite nicely to 0-3-6-10.


===Differences between distributionally-even scales and smaller edos===
{| class="wikitable"
|+
! N
!L-Nedo
!s-Nedo
|-
|2
|35.294¢
| -35.294¢
|-
|3
|23.529¢
|  -47.059¢
|-
|4
|52.941¢
| -17.647¢
|-
| 5
|42.353¢
| -28.235¢
|-
|6
|11.1765¢
| -59.412¢
|-
|7
|40.336¢
| -30.252¢
|-
|8
|61.1765¢
| -9.412¢
|-
|9
|7.843¢
| -62.745¢
|-
|10
|21.1765¢
|  -49.412¢
|-
|11
|32.086¢
| -38.503¢
|-
|12
|41.1765¢
| -29.412¢
|-
|13
|48.869¢
| -21.7195¢
|-
|14
|55.462¢
| -15.126¢
|-
|15
|61.1765¢
| -9.412¢
|-
|16
|66.1765¢
| -4.412¢
|}
== Intervals ==
== Intervals ==


Line 748: Line 815:
* diatonic ([[leapfrog]]/[[archy]]) 5L2s 3331331 (10\17, 1\1)
* diatonic ([[leapfrog]]/[[archy]]) 5L2s 3331331 (10\17, 1\1)
* [[maqamic]] 3L4s 3232322 (5\17, 1\1)
* [[maqamic]] 3L4s 3232322 (5\17, 1\1)
* [[maqamic]] 7L3s 2221221221 (5\17, 1\1)
* [[maqamic]] 7L3s [[Tel:2221221221|2221221221]] (5\17, 1\1)
* [[squares]] 3L5s 1141414 (6\17, 1\1)
* [[squares]] 3L5s [[Tel:1141414|1141414]] (6\17, 1\1)
* [[squares]] 3L8s 13113113 (6\17, 1\1)
* [[squares]] 3L8s 13113113 (6\17, 1\1)
* Pathological [[squares]] 3L11s 11211121112 (6\17, 1\1)  
* Pathological [[squares]] 3L11s [[Tel:11211121112|11211121112]] (6\17, 1\1)
* [[lovecraft]] 4L5s 313131311 (4\17, 1\1)
* [[lovecraft]] 4L5s 313131311 (4\17, 1\1)
* Pathological [[1L 13s]] 4 1 1 1 1 1 1 1 1 1 1 1 1 (1\17, 1\1)
* Pathological [[1L 13s]] 4 1 1 1 1 1 1 1 1 1 1 1 1 (1\17, 1\1)