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{{Infobox ADO|steps=4}} | {{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 | '''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 4th to 8th harmonics octave-reduced. The notes of 4ado create a harmonic seventh chord. | ||
== Intervals == | == Intervals == | ||
Revision as of 06:14, 25 March 2023
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 4th to 8th harmonics octave-reduced. The notes of 4ado create a harmonic seventh chord.
Intervals
| # | Cents | Ratio | Decimal | Interval name | Audio |
|---|---|---|---|---|---|
| 0 | 0 | 1/1 | 1.0000 | perfect unison | |
| 1 | 386.3 | 5/4 | 1.2500 | just major third | |
| 2 | 702.0 | 3/2 | 1.5000 | just perfect fifth | |
| 3 | 968.8 | 7/4 | 1.7050 | harmonic seventh | |
| 4 | 1200.0 | 2/1 | 2.0000 | perfect octave |