About the A flat Vietnamese scale
A flat Vietnamese is used for Vietnamese-flavored and folk melodies. Think of it as a dark five-note scale with a minor third and flat sixth.
Its notes are A♭, C♭, D♭, E♭, and F♭. The formula is 1½ W W H 4 semitones.
A♭ Vietnamese uses three black keys on the piano, A♭, D♭, and E♭.
Notes and intervals
| 1 | AbA♭ | Root |
|---|---|---|
| 2 | CbC♭ | Minor 3rd |
| 3 | DbD♭ | Perfect 4th |
| 4 | EbE♭ | Perfect 5th |
| 5 | FbF♭ | Minor 6th |
| Steps | 1½ W W H 4 semitones |
|---|---|
| Semitones | 3-2-2-1-4 |
| Degrees | 1 ♭3 4 5 ♭6 |
Shapes
Chromatic
Circle of Fifths