C Diminished :: C E♭ G♭

G
D
A
E
♭3
♭5
C
♭5
C
♭3
♭3
C
♭5
C
♭5
♭3
⬤ ⬤
⬤ ⬤
E♭ Major 6th :: E♭ G B♭ C

G
D
A
E
3
E♭
5
5
6
3
6
3
E♭
5
E♭
5
6
6
3
E♭
⬤ ⬤
3
⬤ ⬤