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

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