D Aug 9 chord — Open D
2 voicings · Open D
Tuning:DADF#AD
Open position
1 / 2
Chord tones
D
R
F#
+4
A#
+8
C
+10
E
+2
D Aug 9 in other tunings
Aug 9 in other keys — Open D
D Aug 9 in Open D — video lessons
About D Aug 9 in Open D
The D Aug 9 chord contains the notes D, F#, A#, C, E. 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.