A Diminished :: A C E♭

B
F♯
D
A
A
♭3
♭5
A
♭3
♭5
♭3
♭5
A
♭5
A
♭3
⬤ ⬤
A
⬤ ⬤
D Dominant 7th :: D F♯ A C

B
F♯
D
A
3
D
5
♭7
D
5
♭7
3
D
♭7
3
5
D
3
5
♭7
⬤ ⬤
3
D
5
⬤ ⬤