About the A flat Algerian scale
A flat Algerian is used for North African flavored and cinematic music. Think of it as an ornate eight-note scale, a harmonic minor with an extra raised fourth. It is A♭ Diminished with the sixth lowered.
Its notes are A♭, B♭, C♭, D♭, D, E♭, F♭, and G. The formula is W H W H H H 1½ H. It is the fourth mode of E♭ Bebop Altered.
This mode shares E, D, G, and B with the guitar's open strings. Down at the 4th fret of the low E string lies the lowest A♭ a guitar can play. With a capo at the first fret, A♭ Algerian can be played with G-shape fingerings.
Positions
Playable shapes for this scale up the neck. Tap any note to hear it.
8-position system
8 four-fret boxes, one per scale degree, each a single hand position with almost no shifting. The jazz and classical way, from William Leavitt's Berklee method.
Notes and intervals
| 1 | AbA♭ | Root |
|---|---|---|
| 2 | BbB♭ | Major 2nd |
| 3 | CbC♭ | Minor 3rd |
| 4 | DbD♭ | Perfect 4th |
| 5 | DD | Augmented 4th |
| 6 | EbE♭ | Perfect 5th |
| 7 | FbF♭ | Minor 6th |
| 8 | GG | Major 7th |
| Steps | W H W H H H 1½ H |
|---|---|
| Semitones | 2-1-2-1-1-1-3-1 |
| Degrees | 1 2 ♭3 4 ♯4 5 ♭6 7 |
Shapes
Chromatic
Circle of Fifths
Related scales
Algerian in other keys
Modes
The same notes, starting on a different note.