G♭ Dominant 7th Sus 4 :: G♭ B D♭ E

E
B
G
D
A
E
♭7
4
♭7
G♭
5
♭7
4
G♭
4
G♭
5
♭7
5
4
G♭
♭7
4
5
♭7
4
G♭
5
G♭
5
⬤ ⬤
♭7
4
♭7
⬤ ⬤