G♭ Major
::
G♭
B♭
D♭
⨉
A
E
C
G
3
5
G♭
⬤
3
⬤
5
⬤
⬤
3
G♭
5
⬤
⬤
⬤
G♭
5
⬤
3
G♭
⬤ ⬤
⬤ ⬤
B♭
B Major 7th (♭5)
::
B
D♯
F
A♯
⨉
A
E
C
G
7
♭5
B
⬤
3
7
⬤
B
⬤
♭5
⬤
3
7
⬤
B
⬤
♭5
3
⬤
⬤
7
♭5
3
B
⬤ ⬤
⬤ ⬤