G Dominant 7th :: G B D F

B
F♯
D
A
3
5
G
3
5
♭7
3
G
5
♭7
G
5
♭7
3
G
♭7
⬤ ⬤
3
5
⬤ ⬤
B Diminished :: B D F

B
F♯
D
A
B
♭3
B
♭3
♭5
B
♭3
♭5
♭3
♭5
B
♭5
⬤ ⬤
B
♭3
⬤ ⬤