D♭ Dominant 7th :: D♭ F A♭ B

G
D
A
E
5
3
♭7
3
♭7
D♭
5
D♭
5
♭7
3
♭7
D♭
3
D♭
5
⬤ ⬤
⬤ ⬤
D♭
E♭ Minor 7th :: E♭ G♭ B♭ D♭

G
D
A
E
E♭
5
♭3
5
♭3
♭7
♭7
E♭
5
E♭
5
♭3
♭7
♭3
♭7
E♭
⬤ ⬤
⬤ ⬤
E♭
F Minor 7th (♭5) :: F A♭ B E♭

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