A Add 9 chord — Open G
1 voicing · Open G
Tuning:DGDGBD
Fret 2 position
1 / 1
Chord tones
A
R
C#
+4
E
+7
B
+2
A Add 9 in other tunings
Add 9 in other keys — Open G
A Add 9 in Open G — video lessons
About A Add 9 in Open G
The A Add 9 chord contains the notes A, C#, E, B. In Open G tuning (strings: D–G–D–G–B–D), the chord shapes differ from standard tuning because the open string pitches change. Open G tuning lets you play a G major chord across all open strings — widely used in blues and slide guitar. Diagrams above show all playable shapes in this tuning.