Jimmy Page, Blackmore, Tony Iommi - Crowley, Boleskine, Magic story

This is my new review which I wrote about the spiritual side of Led Zeppelin, Deep Purple and Black Sabbath, what Jimmy Page, Ritchie Blackmore and Tony Iommi believed in. Why Ozzy wrote Mr Crowley. Why Anger put a curse on Led Zeppelin. Blackmore visits Jimmy Page's Boleskine.