4afdo: Difference between revisions
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| Line 8: | Line 8: | ||
! Ratio | ! Ratio | ||
! Interval name | ! Interval name | ||
! Audio | |||
|- | |- | ||
| 0 | | 0 | ||
| Line 13: | Line 14: | ||
| [[1/1]] | | [[1/1]] | ||
| perfect unison | | perfect unison | ||
| | |||
|- | |- | ||
| 1 | | 1 | ||
| Line 18: | Line 20: | ||
| [[5/4]] | | [[5/4]] | ||
| just major third | | just major third | ||
| [[File:Jid_5_4_pluck_adu_dr220.mp3]] | |||
|- | |- | ||
| 2 | | 2 | ||
| Line 23: | Line 26: | ||
| [[3/2]] | | [[3/2]] | ||
| just perfect fifth | | just perfect fifth | ||
| [[File:Jid_3_2_pluck_adu_dr220.mp3]] | |||
|- | |- | ||
| 3 | | 3 | ||
| Line 28: | Line 32: | ||
| [[7/4]] | | [[7/4]] | ||
| harmonic seventh | | harmonic seventh | ||
| [[File:Jid_7_4_pluck_adu_dr220.mp3]] | |||
|- | |- | ||
| 4 | | 4 | ||
| Line 33: | Line 38: | ||
| [[2/1]] | | [[2/1]] | ||
| perfect octave | | perfect octave | ||
| [[File:Jid_2_1_pluck_adu_dr220.mp3]] | |||
|} | |} | ||
[[Category:ADO]] | [[Category:ADO]] | ||
Revision as of 04:30, 25 February 2023
4ado is the arithmetic equal division of the octave into four parts of 1/4 each. 4ado is perhaps the smallest ADO that contains useful intervals for harmony, containing the major third, perfect fifth, and harmonic seventh. It is just large enough to be usable as a scale.
Intervals
| # | Cents | Ratio | Interval name | Audio |
|---|---|---|---|---|
| 0 | 0 | 1/1 | perfect unison | |
| 1 | 386.3 | 5/4 | just major third | |
| 2 | 702.0 | 3/2 | just perfect fifth | |
| 3 | 968.8 | 7/4 | harmonic seventh | |
| 4 | 1200.0 | 2/1 | perfect octave |