What are the diatonic chords of A Double Harmonic Major?

The diatonic chords of A Double Harmonic Major are built by harmonizing each degree of the scale in thirds. The scale degrees are 1 ♭2 3 4 5 ♭6 7 and the intervals are H-3H-H-W-H-3H-H. The triads are: A major, Bb major, C# minor, D minor, E (1-3-♭5), F augmented, G# (1-2-♭5).

What is scale harmonization?

Scale harmonization is the process of building chords from each degree of a scale by stacking thirds. Each note of the scale becomes the root of a chord, producing a set of diatonic chords (triads and seventh chords) that naturally belong to that key.

What is Practice Mode in the Scale Harmonizer?

Practice Mode is an interactive study tool that cycles through all diatonic chords with a synchronized fretboard visualization (switch between scale and arpeggio view), adjustable tempo (40–240 BPM), and audio playback. It includes ii-V-I progressions and secondary dominant exercises — the fretboard automatically shows the contextually correct scale for each chord (e.g., Dorian for the ii, Mixolydian for the V7).

A double harmonic major chords

All cavaquinho chords for the A double harmonic major scale

Show scale diagram ↓

Chord Voicings

Harmony

Originalii–V–ISec. Dom.

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FingerNoteDegree

Fretboard

ScaleArpeggio

A double harmonic major scale diatonic chords

IA major

IIB♭ major

IIIC♯ minor

IVD minor

VE (1-3-♭5)

VIF aug

VIIA♭ (1-2-♭5)

A double harmonic major scale seventh chords

IA maj7

IIB♭ maj7

IIIC♯ m6

IVD mmaj7

VE (1-3-♭5-♭7)

VIF major seventh flat sixth

VIIB♭ 7

A double harmonic major — Cavaquinho scale

Cavaquinho fretboard diagram

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A double harmonic major scale — chords and intervals

Diatonic chords: A major, Bb major, C# minor, D minor, E (1-3-♭5), F augmented, G# (1-2-♭5).

Intervals: H-3H-H-W-H-3H-H.

Use the interactive harmonizer above to explore triads, seventh chords, and chord voicings for composing with the A double harmonic major scale on Cavaquinho.