Dual Triads and Quartal Chords: Quartal Chords in Ionian, Melodic Minor and Harmonic Minor
In ionian, melodic minor and harmonic minor scales, two quartal chords a third from each other will result in the same kind of six note scales as above.
Quartal Chords | Scale | Corresponding Triads |
---|---|---|
1-4-7 + 3-6-9 | 1-2-3-4-6-7 | 6-1-3 + 7-2-4 |
2-5-1 + 4-7-3 | 1-2-3-4-5-7 | 7-2-4 + 1-3-5 |
3-6-9 + 5-1-4 | 1-2-3-4-5-6 | 1-3-5 + 2-4-6 |
4-7-3 + 6-9-5 | 2-3-4-5-6-7 | 2-4-6 + 3-5-7 |
5-1-4 + 7-3-6 | 1-3-4-5-6-7 | 3-5-7 + 4-6-1 |
6-9-5 + 1-4-7 | 1-2-4-5-6-7 | 4-6-1 + 5-7-2 |
7-3-6 + 2-5-1 | 1-2-3-5-6-7 | 5-7-2 + 6-1-3 |
Two quartal voicings a second from each other will result in pentatonic scales.
Quartal Chords | Scale |
---|---|
1-4-7 + 2-5-1 | 1-2-4-5-7 |
2-5-1 + 3-6-9 | 1-2-3-5-6 |
3-6-9 + 4-7-3 | 2-3-4-6-7 |
4-7-3 + 5-1-4 | 1-3-4-5-7 |
5-1-4 + 6-9-5 | 1-2-4-5-6 |
6-9-5 + 7-3-6 | 2-3-5-6-7 |
7-3-6 + 1-4-7 | 1-3-4-6-7 |
Again, not every combination works well in every situation.
When playing a quartal chord from the 4 or 7 in melodic minor, you will get a diminished triad. When building a quartal chord on the 4 in harmonic minor, you also get a diminished triad, but when starting on the 7, you will get a minor triad.