G♭ Dominant 13th
::
G♭
B♭
D♭
E
A♭
B
E♭
A
E
C
G
♭7
3
5
9
11
G♭
⬤
13
3
⬤
5
9
♭7
11
⬤
⬤
13
3
G♭
5
⬤
♭7
11
⬤
9
13
⬤
G♭
5
♭7
⬤
3
9
13
11
G♭
⬤ ⬤
♭7
⬤ ⬤