B Dim 9 chord — Open D
1 voicing · Open D
Tuning:DADF#AD
Fret 9 position
1 / 1
Chord tones
B
R
D
+3
F
+6
G#
+9
C#
+2
B Dim 9 in other tunings
Dim 9 in other keys — Open D
B Dim 9 in Open D — video lessons
About B Dim 9 in Open D
The B Dim 9 chord contains the notes B, D, F, G#, C#. 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.