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