Adim7 chord
A diminished seventh
<
1 / 11
>
G
F#
G
G#
A1
A#
B
C
C#
D
D#
E
F
F#
G
A
C
C
C#
D
D#b5
E
F
F#
G
G#
A
A#
B
C
D#
E
D#
E
F
F#bb7
G
G#
A
A#
B
C
C#
D
D#
E
F#
A
G#
A
A#
B
Cb3
C#
D
D#
E
F
F#
G
G#
A
C
3
5
7
10
The Adim7 chord has the formula 1, b3, b5, bb7 with notes A, C, D#, F#
The diminished seventh chord is used in classical and jazz music. It is often formed on the seventh degree and used as a leading-tone chord toward the tonic.