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

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

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