Katharos XIII plays a brand of black metal that is slightly familiar and slightly on a different level. There are elements of folk metal and black metal incorporated throughout 'Negativity' and the title is quite appropriate. There is a lot of negativity in this cold, forgotten world that Katharos XIII creates on the album. The vocals are whispered secrets, tortured screams and otherworldly wails. The music is just a different blend of metal that you have to hear to understand. I've never heard anything quite like what Katharos XIII offers up and I am still listening to this album and finding hidden moments and notes I missed before.