C Sus 4th :: C F G

G
D
A
E
5
4
4
C
5
C
5
4
C
4
C
5
⬤ ⬤
5
⬤ ⬤
G♭ Major 7th (♭5) :: G♭ B♭ C F

G
D
A
E
3
7
G♭
3
7
♭5
G♭
♭5
3
3
7
♭5
G♭
7
♭5
G♭
⬤ ⬤
⬤ ⬤