5afdo: Difference between revisions
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Terminological development |
+link to the scala file |
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[[File:5ado scale.wav|thumb]] | [[File:5ado scale.wav|thumb]] | ||
'''5afdo''' ([[AFDO|arithmetic frequency division of the octave]]), or '''5odo''' ([[otonal division]] of the octave), divides the octave into five parts of 1/5 each. As a scale it may be known as [[Harmonic mode|mode 5 of the harmonic series]] or the [[Overtone scale #Over- | '''5afdo''' ([[AFDO|arithmetic frequency division of the octave]]), or '''5odo''' ([[otonal division]] of the octave), divides the octave into five parts of 1/5 each. As a scale it may be known as [[Harmonic mode|mode 5 of the harmonic series]] or the [[Overtone scale #Over-n scales|Over-5]] scale. As 5 is a small odd number, this AFDO does not contain a perfect fifth or any reasonable approximation to it, an it is relatively poor for its size at creating traditional tonal music compared to [[4afdo]] and [[6afdo]]. | ||
== Intervals == | == Intervals == | ||
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[[ | == Scala files == | ||
* [[Otonalpentad]] – this file starts with 8/5 | |||
Revision as of 10:35, 20 September 2023
| ← 4afdo | 5afdo | 6afdo → |
5afdo (arithmetic frequency division of the octave), or 5odo (otonal division of the octave), divides the octave into five parts of 1/5 each. As a scale it may be known as mode 5 of the harmonic series or the Over-5 scale. As 5 is a small odd number, this AFDO does not contain a perfect fifth or any reasonable approximation to it, an it is relatively poor for its size at creating traditional tonal music compared to 4afdo and 6afdo.
Intervals
| # | Cents | Ratio | Decimal | Interval name | Audio |
|---|---|---|---|---|---|
| 0 | 0 | 1/1 | 1.0000 | perfect unison | |
| 1 | 315.6 | 6/5 | 1.2000 | just minor third | |
| 2 | 582.5 | 7/5 | 1.40000 | narrow tritone | |
| 3 | 813.7 | 8/5 | 1.6000 | just minor sixth | |
| 4 | 1017.6 | 9/5 | 1.8000 | just minor seventh | |
| 5 | 1200.0 | 2/1 | 2.0000 | perfect octave |
Scala files
- Otonalpentad – this file starts with 8/5