Basically all forms of heavy metal and punk rock derived from Rock n Roll. It was Rock n Roll that started it all. If you ask any rock artist nowadays in where they get there inspiration. They would say from Rock n Roll. The Beatles were the first band to open the world of Hard rock and maney other forms of music like a little bit of an R/B combo. I believe the 60's and the 70's were the very beginnings of hard rock. The 50's was more of the mult shop crap. That was normal Rock n roll. but you get your heavy metal and hard rock from the 60's. I wish I was living during the 60's because I would of went to the very first Wood Stock which was the best one ever.
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