G♭ Major 6th :: G♭ B♭ D♭ E♭

B
F♯
D
A
G♭
6
3
5
6
3
G♭
5
6
G♭
5
3
6
G♭
3
5
⬤ ⬤
G♭
⬤ ⬤
C Major 7th :: C E G B

B
F♯
D
A
7
C
5
3
7
C
3
7
5
C
3
5
7
3
C
5
⬤ ⬤
7
⬤ ⬤