Cdim9/A chord

C Dim 9 · 3rd Inversion · A in the bass

EADGBE

Fret 3 position

1 / 1

Notes

C
R
D#
+3
F#
+6
A
bass
D
+2

About Cdim9/A

Cdim9/A is C Dim 9 with A as the lowest note. This is the 3rd inversion of the chord — the same notes as C Dim 9 (C, D#, F#, A, D), but voiced so that A sits in the bass. Slash chords create a smoother bass line movement and are common in chord progressions where the bass walks stepwise.

Other inversions

← All C Dim 9 voicings