5afdo
5ado is the arithmetic equal division of the octave into five parts of 1/5 each. As 5 is a small odd number, this ADO 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 4ado and 6ado.
Intervals
| # | Cents | Ratio | Interval name | |
|---|---|---|---|---|
| 0 | 0 | 1/1 | perfect unison | |
| 1 | 315.6 | 6/5 | just minor third | |
| 2 | 582.5 | 7/5 | narrow tritone | |
| 3 | 813.7 | 8/5 | just minor sixth | |
| 4 | 1017.6 | 9/5 | just minor seventh | |
| 5 | 1200.0 | 2/1 | perfect octave |