C# 13 #9 chord — Open G
1 voicing · Open G
Tuning:DGDGBD
Fret 2 position
1 / 1
Chord tones
C#
R
F
+4
G#
+7
B
+10
E
+3
F#
+5
A#
+9
C# 13 #9 in other tunings
13 #9 in other keys — Open G
C# 13 #9 in Open G — video lessons
About C# 13 #9 in Open G
The C# 13 #9 chord contains the notes C#, F, G#, B, E, F#, A#. 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.