Guitar chords in the key of C major:
Chord C13 (8th fret) notes: C, Bb, E, A and D. You should not play the 5th string.
This chord is played by placing a barre on fret eight with your index finger.
C13 - C dominant 13th guitar chord.
1(C), 3(E), 5(G), b7(A#/Bb), 9(D), 13(A).