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{{Infobox ADO|steps=7}} | {{Infobox ADO|steps=7}} | ||
'''7ado''' ([[ADO|arithmetic division of the octave]]), or ''' | '''7ado''' ([[ADO|arithmetic division of the octave]]), or '''7odo''' ([[otonal division]] of the octave), divides the octave into seven parts of 1/7 each. As a scale it may be known as [[Harmonic mode|mode 7 of the harmonic series]] or the [[Overtone_scale#Over-n_scales|Over-7]] scale. As 7 is a small odd number, this ADO does not contain a perfect fifth or any reasonable approximation to it, and it is relatively poor for its size at creating traditional tonal music. | ||
== Intervals == | == Intervals == | ||
Revision as of 04:21, 1 April 2023
Template:Infobox ADO 7ado (arithmetic division of the octave), or 7odo (otonal division of the octave), divides the octave into seven parts of 1/7 each. As a scale it may be known as mode 7 of the harmonic series or the Over-7 scale. As 7 is a small odd number, this ADO does not contain a perfect fifth or any reasonable approximation to it, and it is relatively poor for its size at creating traditional tonal music.
Intervals
| # | Cents | Ratio | Decimal | Interval name | Audio |
|---|---|---|---|---|---|
| 0 | 0 | 1/1 | 1.0000 | perfect unison | |
| 1 | 231.2 | 8/7 | 1.1429 | supermajor second | |
| 2 | 435.1 | 9/7 | 1.2857 | supermajor third | |
| 3 | 617.5 | 10/7 | 1.4286 | high tritone | |
| 4 | 782.4 | 11/7 | 1.5714 | undecimal minor sixth | |
| 5 | 933.1 | 12/7 | 1.7143 | supermajor sixth | |
| 6 | 1071.7 | 13/7 | 1.8571 | tridecimal submajor seventh | |
| 7 | 1200.0 | 2/1 | 2.0000 | perfect octave |