Major audio fixes and addons!

So i read a comment concerning the audio being quieter than the background music, vise versa and the sound effects being too loud. I fixed ALL of those, in addition to adding in missing voice lines. However, because i fiddled around with the rhythm game, the game over screen for certain amount of missed notes is not working...ill hopefully get that fixed soon. This is a demo so I'm not too stressed about it, but if anything you'll be able to notice a change in the second song :) I wanted to add that change before i first released the demo but i didn't have time.