C 7 #9 #11 chord — Open G
1 voicing · Open G
Tuning:DGDGBD
Open position
1 / 1
Chord tones
C
R
E
+4
G
+7
A#
+10
D#
+3
F#
+6
C 7 #9 #11 in other tunings
7 #9 #11 in other keys — Open G
C 7 #9 #11 in Open G — video lessons
About C 7 #9 #11 in Open G
The C 7 #9 #11 chord contains the notes C, E, G, A#, D#, F#. 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.