I really wanna try out this game, but whenever I open it, its completely normal until I choose a track on freeplay mode and click start, it does the DVD animation, but it transitions to a completely grey screen, and there's no indication of it loading. Am I just doing something wrong..?

What a relief, I'm also in the same boat, I thought it was something with my PC, but I also tried to do the same thing of playing the first sounds and it gave the same result on the screen. Does not load, I hope the developers can send a patch or something.

I'm in the same boat then

This version is broken. It won't load any of the levels. The levels that already existed kick me back to the menu and the latest level puts me in grey screen purgatory.

I also encountered the same problem as you. I tried turning on safe mode. The song will play, but the screen will remain gray.