A diminished seventh chord on piano
A diminished seventh is A, C, Eb and Gb.
- Symbol
- Adim7
- Formula
- R b3 b5 bb7
- Same keys as
- Cdim7/A, D#dim7/A, F#dim7/A
Inversions
Cdim7
First inversion, C in the bass: C4 Eb4 Gb4 A4
D#dim7
Second inversion, Eb in the bass: Eb4 Gb4 A4 C5
F#dim7
Third inversion, Gb in the bass: Gb4 A4 C5 Eb5