D Minor 7th (♭5) :: D F A♭ C

E
B
G
D
A
E
D
♭3
♭7
♭5
♭3
D
♭3
♭7
♭5
♭5
♭7
D
♭3
♭5
D
♭7
♭3
♭7
♭5
D
♭3
♭7
D
♭5
⬤ ⬤
D
⬤ ⬤