Great satanic metal without being thrash. If you haven't heard King Diamond's voice before, you you may want to listen to it first as his voice ranges from very high pitched falsetto to guttural from one bar to the next. If you don't like falsetto voices then you probably won't like King Diamond. What really makes Mercyful Fate great is the talent of the musicians. Great talent all around with alternating lead guitars. Although I find 'Melissa' to be superior in terms of music, this album still delivers quite a punch. Every song on this album rocks!