D Minor 7th (♭5) :: D F A♭ C

A
E
C
G
♭7
♭3
♭5
D
♭7
♭5
D
♭3
♭7
D
♭3
♭7
♭5
D
♭3
♭5
⬤ ⬤
♭7
⬤ ⬤
A♭ C
A♭ Major 7th :: A♭ C E♭ G

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

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