What are the diatonic chords of A Blues?

The diatonic chords of A Blues are built by harmonizing each degree of the scale in thirds. The scale degrees are 1 ♭3 4 ♭5 5 ♭7 and the intervals are 3H-W-H-H-3H-W. The triads are: A suspended fourth, C minor, D suspended second, C minor, D suspended second, C minor.

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 blues chords

All ukulele chords for the A blues scale

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Chord Voicings

Harmony

Originalii–V–ISec. Dom.

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FingerNoteDegree

Fretboard

ScaleArpeggio

A blues scale diatonic chords

IA sus4

IIC minor

IIID sus2

IVE♭ minor

VE sus4

VIG minor

scale

Ukulele fretboard diagram

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A blues scale — ukulele chords and intervals

The A blues scale has the following degrees: 1 ♭3 4 ♭5 5 ♭7.

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

Diatonic chords: A sus4, C minor, D sus2, Eb minor, E sus4, G minor.

Degrees	Chord
I	A sus4
ii	C minor
iii	D sus2
IV	Eb minor
V	E sus4
vi	G minor

This page focuses on the harmonic content — the chords built from each degree of the A blues scale. For fretboard patterns and fingering guides, see the scale page.

Use the interactive harmonizer above to explore triads, seventh chords, and chord voicings for composing with the A blues scale on ukulele.

Explore A blues Further

A blues scale — fretboard diagram
A blues arpeggio on ukulele
Browse chord progressions
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