Guitar chords in the key of A:
Chord A (9th fret) notes: A, C#, E, A and C#. You should not play the 6th string.
This chord is played by placing a barre on fret nine with your index finger.
A major chord's alternative names: AM, Amaj, La major, A dur.
1(A), 3(C#/Db), 5(E).