basically, im planning to add music to a new project and i want to make it a lil unique. yall know how in some games, there's background music (abbreviation is bgm) and there's like multiple line things that kind measure how loud the music is? yeah, im tryna make smth like that but im not sure how exactly i should make it.

I think what you're referring to is a music visualizer. I'll ask for this to be moved to Help With Scripts, you can get some help there.