G Dominant 7th :: G B D F

F
C
G
D
♭7
G
5
G
5
♭7
3
♭7
G
3
G
5
5
3
♭7
3
⬤ ⬤
♭7
G
5
⬤ ⬤
G Diminished :: G B♭ D♭

F
C
G
D
G
♭5
G
♭3
♭3
G
♭5
G
♭5
♭3
♭3
♭5
⬤ ⬤
G
⬤ ⬤