My head cannot handle metal music. Heh.  If Adolphian likes it, power to him. He can keep it. ;) I'm prone to headaches and have more sensitive hearing with my blindness, so that's part of it. The Finnish polka I was enjoying. It immediately struck me that I recognize the song and it wasn't until just a little while ago that I realized why. I had a memory of my sister being really into Vocaloids and her sharing some of the music with me. I looked it up and found that Miku had a very popular song based off of the one you shared. Listening to it brought back a lot of memories.