A Dominant 7th (♭5) :: A C♯ E♭ G

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

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