G♭ Major 7th :: G♭ B♭ D♭ F

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

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