Devil Doll uses pipe organ. I'm positive. The metal bands probably use keyboard or something. The organ for that song was recorded at Trnovo Church, Ljubljana. Dies Irae uses a bigger one I think, from Monte Berico Basilica in Italy. I didn't realize that all pipe organs were large. You're saying I really couldn't have one of these in my house (the size of a piano)?
Anyway, thanks for the help.