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