Lol well my name actually comes from the Japanese code of the warrior, but thanks
.
I have kinda dealt with a similar issue in my life and it's not really Satanic music but negative music in general. I have learned over time the real power of words, not just in music, but any words that are spoken verbally. I found that with myself, the more I listened to negative music, the more negative thoughts I would have throughout the day. If I listened to really hateful, prideful music, I would generally have a lot more hateful, prideful thoughts throughout the day (that would sometimes spill into my actions and conversations). Same thing with sad songs. I LOVE sad/depressing songs haha. But I found that I would be more sad/angry when I dealt with common situations. I believe that spirits act on what you listen to, or by listening to a certain kind of song, it might give certain spirits more of a foothold for influence.
even if bands like Behemoth are releasing their songs just to be "funny" or "shocking", what they are doing in their songs (invoking demons/Satan, worshiping, conjuring,) is still very real, whether they realize it themselves or not. I would not be the least bit surprised to find the band members' lives riddled with negative attitudes, events, and circumstances because of their music, whether or not they act like it in interviews.
By singing or even listening to lyrics like that, one might open up a window for demonic activity in their lives. And I'm not really talking about the stuff that goes on in demonic movies, I find that demons (mostly) like to operate on the down low without being detected for as long as they can.
Now I'm not here saying you can or can't do anything. That's purely up to you and what you think about the subject. I'm just giving you as much information as I can based on my experience as both a music lover and a musician.