A huge improvement over my example of Slayer. I didn't think that I would go from Norah Jones, Laura Nyro etc to Metallica, Slayer, pre Lady Gaga doing Zep covers in just a few hours.
I don't understand what the question is specifically about. I was delayed because I had to do a computer reboot. My intentions were to show that Metal is popular in multiple places around the world.
This guy is better at playing guitar than I have ever been at anything. You should google him and search him and lean back and enjoy all of his musings.