C# 7 b9 chord — Open D
1 voicing · Open D
Tuning:DADF#AD
Fret 11 position
1 / 1
Chord tones
C#
R
F
+4
G#
+7
B
+10
D
+1
C# 7 b9 in other tunings
7 b9 in other keys — Open D
C# 7 b9 in Open D — video lessons
About C# 7 b9 in Open D
The C# 7 b9 chord contains the notes C#, F, G#, B, D. In Open D tuning (strings: D–A–D–F#–A–D), the chord shapes differ from standard tuning because the open string pitches change. Open D tuning gives an open D major chord across all strings — ideal for slide guitar and Joni Mitchell-style playing. Diagrams above show all playable shapes in this tuning.