I've heard sepultra before, but I've never really listened to them. I personally don't believe that music is satanic. In my opinion people tend to over react a lot and think that any music that is not christian is satanic.
When I look at music I look to see if it is something that I might like. If the music has a good beat, reasonably good lyrics, and is fun to listen to then there's a good chance that I might like it and want to listen to it more. It all really depends on the song and the artist.
I'll listen to groups like Ozzy Osbourne, Kiss, Motley Crue and others, but I also will listen to some pop, some country, some rap, and some R&B.
Unless I know the artist and like the artist and songs that they produce I have to hear the artist and the song in order to determine if I like it or not.
I will not listen to anything that I believes promotes hatred or any criminal activity for any reason.
Some of the bands that I do know and like include Journey, Foreigner, Night Ranger, and others like them and that's just a small sampling of the kinds of bands and music that I do like and will listen to.
Marilyn Manson is one band however that I will not consider listening to because I don't like how he looks or what he stands for. He is one of the few artists and bands that I do actually disapprove of. I find Marilyn Manson extremely offensive and disgusting. He is no where near the music that I grew up with.
The music that I grew up with was fun to listen to and/or represented fun, love, romance, relationships and other related things.