14afdo: Difference between revisions
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{{Infobox | {{Infobox AFDO|steps=14}} | ||
''' | |||
==Theory== | '''14afdo''' ([[AFDO|arithmetic frequency division of the octave]]), or '''14odo''' ([[otonal division]] of the octave), divides the octave into 14 parts of 1/14 each. It is a superset of [[13afdo]] and a subset of [[15afdo]]. As a scale it may be known as [[Harmonic mode|mode 14 of the harmonic series]] or the [[Overtone scale #Over-n scales|Over-14]] scale. | ||
The esoteric [[Factor 9 grid]] scale is a mode of | |||
== Theory == | |||
The esoteric [[Factor 9 grid]] scale is a mode of 14afdo starting on the 11th step from the tonic, of which 12 or 13 notes were conveniently selected for "A = 432 Hz" conspiracy purposes. 14afdo contains [[supraminor]] and [[supermajor]] triads above the root. | |||
== Intervals == | == Intervals == | ||
{| class="wikitable center-all" | {| class="wikitable center-all" | ||
| Line 103: | Line 106: | ||
| [[File:Jid_13_7_pluck_adu_dr220.mp3]] | | [[File:Jid_13_7_pluck_adu_dr220.mp3]] | ||
|- | |- | ||
|13 | | 13 | ||
|1137.0 | | 1137.0 | ||
|[[27/14]] | | [[27/14]] | ||
|1.9286 | | 1.9286 | ||
|septimal major seventh | | septimal major seventh | ||
|[[File:Jid_27_14_pluck_adu_dr220.mp3]] | | [[File:Jid_27_14_pluck_adu_dr220.mp3]] | ||
|- | |- | ||
| 14 | | 14 | ||
| 1200.0 | | 1200.0 | ||
|[[2/1]] | | [[2/1]] | ||
| 2.0000 | | 2.0000 | ||
| perfect octave | | perfect octave | ||
|[[File:Jid_2_1_pluck_adu_dr220.mp3]] | | [[File:Jid_2_1_pluck_adu_dr220.mp3]] | ||
|} | |} | ||
Factor 9 grid can be obtained if the scale is rotated to start at 12/7 instead of 1/1. | Factor 9 grid can be obtained if the scale is rotated to start at 12/7 instead of 1/1. | ||
== Scales == | |||
* Apex{{idiosyncratic}}: 15/14–18/14–19/14–21/14–22/14–26/14–28/14 (original/default tuning for apex) | |||
* 14afdo septimal minor pentatonic: 16/14 - 18/14 - 21/14 - 24/14 - 28/14 | |||