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