I listened first time Slayer two years ago from a sharing site and then on You Tube.I was surprised of the difference from the child voice and all "thicker"singed live.I have to recognize that I don't know for sure what's original because I also don't trust my computer entirely but I was very inloved with the child voice I first listened.I wish to find and meet other members of my age with the same simpaty.I don't like or accept to hear rap or punk,pop,disco type.