Metal Evolution
Metal Evolution: Check at the 24 sub-genres of Metal. http://www.muchmore.ca/metal-evolution/ http://www.bangerfilms.com/ http://en.wikipedia.org/wiki/Metal_Evolution http://en.wikipedia.org/wiki/Metal:_A_Headbanger%27s_Journey http://www.vh1.com/shows/metal_evolution/series.jhtml http://consulting.triconfilms.com/properties/92