Ab Double Harmonic Scale

Ab – Bbb – C – Db – Eb – Fb – G – Ab

Formula:H-A2-H-W-H-A2-H

Intervals:P1-m2-M3-P4-P5-m6-M7

Ab Double Harmonic Scale Notes

Degree	Name	Note	Interval
1	Tonic	Ab4	P1
2	Supertonic	Bbb4	m2
3	Mediant	C5	M3
4	Subdominant	Db5	P4
5	Dominant	Eb5	P5
6	Submediant	Fb5	m6
7	Leading Tone	G5	M7
8	Octave	Ab5	—

The key of Ab Double Harmonic Scale has 4 flats: B♭, E♭, A♭, D♭.

B♭E♭A♭D♭

These are the diatonic triads built on each degree of the Ab Double Harmonic Scale:

Degree	Numeral	Chord	Quality
1	I	Ab Major	Major
2	ii	Bb Minor	Minor
3	iii	C Minor	Minor
4	IV	Db Major	Major
5	V	Eb Major	Major
6	vi	F Minor	Minor
7	vii°	G Diminished	Diminished