3afdo: Difference between revisions
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Terminological development |
+subsets and supersets and clarify |
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{{Infobox AFDO|steps=3}} | {{Infobox AFDO|steps=3}} | ||
'''3afdo''' ([[AFDO|arithmetic frequency division of the octave]]), or '''3odo''' ([[otonal division]] of the octave), if the attempt is made to use it as an actual | '''3afdo''' ([[AFDO|arithmetic frequency division of the octave]]), or '''3odo''' ([[otonal division]] of the octave), if the attempt is made to use it as an actual [[tuning system]], would divide the [[octave]] into three arithmetically equal parts. It is a superset of [[2afdo]] and a subset of [[4afdo]]. As a [[scale]] it may also be known as [[harmonic mode|mode 3 of the harmonic series]] or the [[overtone scale #Over-n scales|Over-3]] scale. The notes of this AFDO form a 3:4:5 triad (first rotation of the [[just major triad]]) on root position. | ||
== Intervals == | == Intervals == | ||
Revision as of 13:05, 15 October 2024
| ← 2afdo | 3afdo | 4afdo → |
3afdo (arithmetic frequency division of the octave), or 3odo (otonal division of the octave), if the attempt is made to use it as an actual tuning system, would divide the octave into three arithmetically equal parts. It is a superset of 2afdo and a subset of 4afdo. As a scale it may also be known as mode 3 of the harmonic series or the Over-3 scale. The notes of this AFDO form a 3:4:5 triad (first rotation of the just major triad) on root position.
Intervals
| # | Cents | Ratio | Decimal | Interval name | Audio |
|---|---|---|---|---|---|
| 0 | 0.0 | 1/1 | 1.0000 | perfect unison | |
| 1 | 498.0 | 4/3 | 1.3333 | just perfect fourth | |
| 2 | 884.4 | 5/3 | 1.6667 | just major sixth | |
| 3 | 1200.0 | 2/1 | 2.0000 | perfect octave |