I think they play it in standard tuning but i'm not 100% sure. The bass was pretty heavy because i was very close to the woofers. oh and James Hetfield looks bloody old with his new haircut!!! what was he thinking, looked way better with longer hair! but hey it sounded good. oh and the pyro parts in the intro to one was awesome, felt the heat - was damn intense. and then the fireworks were pretty sweet.