G♭ Major 7th :: G♭ B♭ D♭ F

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

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