B Dominant 7th :: B D♯ F♯ A

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

B
F♯
D
A
3
5
A♭
3
5
3
A♭
5
A♭
5
3
A♭
⬤ ⬤
⬤ ⬤