5afdo

5ado (arithmetic 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 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	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