D Diminished :: D F A♭

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

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