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
⬤ ⬤
G B♭
C Minor 7th :: C E♭ G B♭

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