5afdo: Difference between revisions
Jump to navigation
Jump to search
CompactStar (talk | contribs) No edit summary |
+subsets and supersets |
||
| (14 intermediate revisions by 4 users not shown) | |||
| Line 1: | Line 1: | ||
{{Infobox AFDO|steps=5}} | |||
[[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. It is a superset of [[4afdo]] and a subset of [[6afdo]]. 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 over the root, and it is relatively poor for its size at creating traditional tonal music compared to 4afdo and 6afdo (again only if over the root, the modes have more to offer). | ||
== Intervals == | == Intervals == | ||
| Line 8: | Line 9: | ||
! Cents | ! Cents | ||
! Ratio | ! Ratio | ||
! Decimal | |||
! Interval name | ! Interval name | ||
! Audio | |||
|- | |- | ||
| 0 | | 0 | ||
| 0 | | 0 | ||
| [[1/1]] | | [[1/1]] | ||
| 1.0000 | |||
| perfect unison | | perfect unison | ||
| | |||
|- | |- | ||
| 1 | | 1 | ||
| 315.6 | | 315.6 | ||
| [[6/5]] | | [[6/5]] | ||
| 1.2000 | |||
| just minor third | | just minor third | ||
| [[File:Jid_6_5_pluck_adu_dr220.mp3]] | |||
|- | |- | ||
| 2 | | 2 | ||
| 582.5 | | 582.5 | ||
| [[7/5]] | | [[7/5]] | ||
| 1.40000 | |||
| narrow tritone | | narrow tritone | ||
| [[File:Jid_7_5_pluck_adu_dr220.mp3]] | |||
|- | |- | ||
| 3 | | 3 | ||
| 813.7 | | 813.7 | ||
| [[8/5]] | | [[8/5]] | ||
| 1.6000 | |||
| just minor sixth | | just minor sixth | ||
| [[File:Jid_8_5_pluck_adu_dr220.mp3]] | |||
|- | |- | ||
| 4 | | 4 | ||
| 1017.6 | | 1017.6 | ||
| [[9/5]] | | [[9/5]] | ||
| 1.8000 | |||
| just minor seventh | | just minor seventh | ||
| [[File:Jid_9_5_pluck_adu_dr220.mp3]] | |||
|- | |- | ||
| 5 | | 5 | ||
| 1200.0 | | 1200.0 | ||
| [[2/1]] | | [[2/1]] | ||
| 2.0000 | |||
| perfect octave | | perfect octave | ||
| [[File:Jid_2_1_pluck_adu_dr220.mp3]] | |||
|} | |} | ||
[[Category: | == In traditional music == | ||
The [[Wagogo]] people of central [[Tanzanian|Tanzania]] make use of mode 5 of the harmonic series as [[pentatonic]] scale to play melodies and harmonies in. | |||
== Scala files == | |||
* [[Otonalpentad]] – this file starts with 8/5 | |||
[[Category:African music]] | |||
Latest revision as of 11:07, 23 February 2025
| ← 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. It is a superset of 4afdo and a subset of 6afdo. 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 over the root, and it is relatively poor for its size at creating traditional tonal music compared to 4afdo and 6afdo (again only if over the root, the modes have more to offer).
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 |
In traditional music
The Wagogo people of central Tanzania make use of mode 5 of the harmonic series as pentatonic scale to play melodies and harmonies in.
Scala files
- Otonalpentad – this file starts with 8/5