How to form diatonic chords of A major scale?
A Major Scale
A – B – C♯ – D – E – F♯ – G♯ – A are the notes of the A major scale.
Diatonic chords are formed by stacking two generic third notes above each scale note.
A Major Diatonic Chords
These are the seven major scale diatonic chords that come from the A major scale.
Each major scale diatonic chord is labelled with a roman numeral number:
All major scales follow the same pattern:
I, ii, iii, IV, V, vi, viiº
We use uppercase roman numeral numbers to represent major chords, lowercase to represent minor chords, uppercase with a small plus sign to represent augmented chords, and lowercase with a small circle to represent diminished chords.
First, fourth and fifth chords in major will always be major. Second, third and sixth chords in major will always be minor. Seventh chord in major scale will always be diminished.
The seven diatonic chords in the A major key are:
I. A – C♯ – E (A major chord)
ii. B – D – F♯ (B minor chord)
iii. C♯ – E – G♯ (C Sharp minor chord)
IV. D – F♯ – A (D major chord)
V. E – G♯ – B (E major chord)
vi. F♯ – A – C♯ (F Sharp minor chord)
viiº. G♯ – B – D (G Sharp diminished chord)
These are the harmonic chords that are diatonic to the A major scale.
List of all Major Scale Diatonic Chords in Every Major Keys
Major scale with no sharp or flat:
Diatonic Chords of C Major Scale
Major scales with sharps:
Diatonic Chords of G Major Scale
Diatonic Chords of D Major Scale
Diatonic Chords of A Major Scale
Diatonic Chords of E Major Scale
Enharmonic Major Scales:
Diatonic Chords of B Major Scale / C Flat Major Scale
Diatonic Chords of F Sharp Major Scale / G Flat Major Scale
Diatonic Chords of C Sharp Major Scale / D Flat Major Scale
Major scales with flats:
Diatonic Chords of A Flat Major Scale
Diatonic Chords of E Flat Major Scale
Diatonic Chords of B Flat Major Scale
Diatonic Chords of F Major Scale