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
⬤ ⬤
⬤ ⬤
B♭ D♭ F
B♭ Minor 7th :: B♭ D♭ F A♭

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