A Dominant 9th :: A C♯ E G B

B
F♯
D
A
9
A
♭7
3
5
9
A
3
5
9
♭7
3
A
5
♭7
9
A
5
♭7
3
⬤ ⬤
9
A
⬤ ⬤
G Diminished :: G B♭ D♭

B
F♯
D
A
G
♭3
♭5
♭3
♭5
G
♭5
G
♭3
G
♭3
♭5
⬤ ⬤
⬤ ⬤