C 11 b9 chord — Drop D
3 voicings · Drop D
Tuning:DADGBE
Open position
1 / 3
Chord tones
C
R
E
+4
G
+7
A#
+10
C#
+1
F
+5
C 11 b9 in other tunings
11 b9 in other keys — Drop D
C 11 b9 in Drop D — video lessons
About C 11 b9 in Drop D
The C 11 b9 chord contains the notes C, E, G, A#, C#, F. In Drop D tuning (strings: D–A–D–G–B–E), the chord shapes differ from standard tuning because the open string pitches change. Drop D lowers the low E string to D, making power chords and D-root chords easier to play. Diagrams above show all playable shapes in this tuning.