Revisit four songs from the late '70s, which all have iconic guitar riffs that more or less helped define heavy metal as we know it.

In the realm of popular (that is to say, non-classical) music, the metal and country genres might, at first glance, seem about as far apart as you can get. It's hard to discern any obvious link ...

Heavy metal and country music are not a match made in heaven. To the majority of music fans, they seemingly hold nothing in common and juxtapose each other in a plethora of different ways. However, ...