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