I've got two Hypocrisy albums, and they sound totally different. Tagtgren is the singer on Osculum Obscenum, right? At least, except for the bonus tracks, which I believe are by their original vocalist. I know he's the singer on Abducted as well, but what the heck? When did he stop doing the growl and switch to the screamy kind of singing? NOBODY growled as low and as scary as he did on Obscenum; when and why did he change?