Chords in the Key of A
The seven diatonic chords of A Major, with Roman numerals and common progressions.
Diatonic Chords in A Major
Common Progressions in A Major
The Chords in A Major
The key of A Major contains seven diatonic chords: A, Bm, C#m, D, E, F#m, G#dim. The three major chords are A, D, E. These are the I, IV, and V chords, the backbone of most chord progressions in this key. The three minor chords are Bm, C#m, F#m, and the seventh degree is G#dim, which is rarely used as a standalone chord but appears in passing progressions and jazz harmony.
Common Chord Progressions in A Major
The most popular progression in A Major is I–V–vi–IV: A, E, F#m, D. This progression is the foundation of hundreds of popular songs across rock, pop, folk, and country. The I chord (A) is the tonal centre; the V chord (E) creates tension that resolves back to I; and the IV chord (D) adds movement and contrast. Knowing these three chords alone is enough to play a large portion of songs written in A Major.
A Major on Guitar
A Major is one of the most guitar-friendly keys. Most of its diatonic chords can be played as open chord shapes or straightforward barre chords. Guitarists playing in A Major often use open voicings for a full, resonant sound, or move up the neck for a brighter tone. If the chords are too challenging in this key, use our capo chart to find a comfortable capo position that lets you play easier shapes while still sounding in A Major.
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