D Algerian Scale
D Algerian contains 8 notes: D, E, F, G, G♯, A, A♯, C♯. It has 3 sharps: G♯, A♯, C♯. The step pattern is W–H–W–H–H–H–W+H–H.
An 8-note scale that blends North African melodic traditions with elements of harmonic minor. Its two augmented 2nd intervals create a passionate, double-exotic character reminiscent of Andalusian-Arabic music from Algeria, Morocco, and Tunisia.
The formula is 1, 2, b3, 4, #4, 5, b6, 7. The 8 notes include both natural 4 and #4, creating a chromatic cluster that adds tension. The augmented 2nd intervals (b3 to #4 and b6 to 7) give it a quality reminiscent of Hungarian minor. It combines elements of harmonic minor with a raised 4th.
The chromatic cluster between 4 and #4 sits on adjacent frets and works well as a rapid ornament. Use it over minor chords when a Mediterranean-Arabic atmosphere is desired. The two augmented 2nd intervals provide natural points for dramatic slides and bends.