Chords in the Key of A Major
Every diatonic triad and seventh chord in A major, with the progressions built from them. Free. No sign-up.
Key facts
Diatonic triads
Seventh chords
Stack one more scale tone on each triad and you get the seventh chords — same key, more color.
Common progressions in A major
I–V–vi–IV
A – E – F#m – D
The four-chord pop loop — a huge share of modern radio runs on it.
I–IV–V
A – D – E
The three-chord workhorse behind blues, folk, and early rock and roll.
ii–V–I
Bm – E – A
The jazz cadence — the strongest pull back home in the key.
I–vi–IV–V
A – F#m – D – E
The '50s doo-wop turnaround, still everywhere in ballads.
How the key of A major works
A Major carries three sharps (F#, C# and G#). The scale runs A–B–C#–D–E–F#–G#, and stacking every other note of that scale builds the seven chords above — every chord tone comes from those same seven notes.
F# Minor is the relative minor: identical key signature, identical seven chords. A song that treats F#m — the vi chord here — as home base is in F# minor, even though its chord inventory matches this page exactly.
The parallel minor, A Minor, keeps the same root but flattens the third, sixth, and seventh — its signature shifts to no sharps or flats. Borrowing chords across that line is where a lot of songwriting color comes from.
Keep practicing
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