4afdo: Difference between revisions

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{{Infobox ADO|steps=4}}
[[File:4ado scale.wav|thumb]]
[[File:4ado scale.wav|thumb]]
'''4ado''' is the [[ADO|arithmetic equal division of the octave]] into four parts of 1/4 each. Because 4 is a power of 2, 4ado corresponds to the 1st to 4th harmonics octave-reduced. The notes of 4ado create a harmonic seventh chord.
'''4ado''' is the [[ADO|arithmetic equal division of the octave]] into four parts of 1/4 each. Because 4 is a power of 2, 4ado corresponds to the 1st to 4th harmonics octave-reduced. The notes of 4ado create a harmonic seventh chord.

Revision as of 02:22, 2 March 2023

Template:Infobox ADO

4ado is the arithmetic equal division of the octave into four parts of 1/4 each. Because 4 is a power of 2, 4ado corresponds to the 1st to 4th harmonics octave-reduced. The notes of 4ado create a harmonic seventh chord.

Intervals

# Cents Ratio Decimal Interval name Audio
0 0 1/1 1.000 perfect unison
1 386.3 5/4 1.250 just major third
2 702.0 3/2 1.500 just perfect fifth
3 968.8 7/4 1.750 harmonic seventh
4 1200.0 2/1 2.000 perfect octave