MUSIC WITHOUT THE BEEPS, TOOTS, AND URPS
If you listen to audio CDs on your PC, then you should hear this. Sorry, couldn't help the pun.
Anyway, why not turn off those system sounds so they don't interrupt your music? You know, the beeps and toots Windows makes when you click on something in error or come to the end of a file.
Don't use the full mute -- on the far left -- or you won't even hear your music.