4afdo: Difference between revisions
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| Line 35: | Line 35: | ||
| 968.8 | | 968.8 | ||
| [[7/4]] | | [[7/4]] | ||
| 1.750 | |||
| harmonic seventh | | harmonic seventh | ||
| [[File:Jid_7_4_pluck_adu_dr220.mp3]] | | [[File:Jid_7_4_pluck_adu_dr220.mp3]] | ||
Revision as of 02:00, 2 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 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 |