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