High school principal (or whatever the equivilant is in Sweden). During the first couple of weeks, he'd scare the kids into submission with his death growls (I said GET TO YOUR CLASSROOOOOOOOOOM!!!! YAAARRRRWWWWWW!!!!!!!). But then after they got to know him, they'd all realize that he's just this really cool, laid back, likable guy who plays guitar in a side band. And he'd turn them on to all of these cool, obscure prog groups from the 70's.
You seem like describing your experience with Opeth
attracted by death metal which turned you into Prog rock am I wrong?