A Diminished :: A C E♭

F
C
G
D
♭3
♭5
A
♭5
A
♭3
♭3
A
♭5
A
♭5
♭3
⬤ ⬤
♭3
⬤ ⬤
A
G Dominant 9th :: G B D F A

F
C
G
D
♭7
G
5
G
5
9
♭7
9
3
♭7
G
3
G
5
9
5
9
3
♭7
3
⬤ ⬤
♭7
G
5
⬤ ⬤