B Dominant 7th :: B D♯ F♯ A

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

A
E
C
G
♭5
♭7
♭3
♭5
E♭
♭7
♭5
E♭
♭3
♭7
E♭
♭3
♭7
♭5
E♭
♭3
⬤ ⬤
♭5
⬤ ⬤