D♭ Major 7th :: D♭ F A♭ C

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

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

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