I got the SC and when I try to play even the demo levels there's no music. Yes, It came with the music folder. HELP!!!

You need to put the item

And then put in the name of the musiv file, or just duplicate the room that says to duplicate.

I know... even when I play offical levels theres no music

Mayby you didnt extact the music all the way, or mayby you have your speakers muted, can you hear the sfx?

Yes, I can hear SFX