B♭ Augmented 7th :: B♭ D F♯ A♭

G
D
A
E
3
♭7
B♭
♯5
B♭
♯5
♭7
3
♭7
B♭
3
B♭
♯5
3
♯5
♭7
⬤ ⬤
3
⬤ ⬤
C Major :: C E G

G
D
A
E
5
3
3
C
5
C
5
3
C
3
C
5
⬤ ⬤
5
3
⬤ ⬤