We always think of metal as being invented in the 1970's, but back in 1840's Franz Liszt was already rocking!!! Just listen to this... https://www.youtube.com/watch?v=md2IxKFsWD0&feature=related"]YouTube- Liszt: "Danse macabre" Paraphrase on "Dies Irae" for piano and orcherstra "Totentanz" Part I https://www.youtube.com/watch?v=6uy_TxQkeGU"]YouTube- Liszt: "Danse macabre" Paraphrase on "Dies Irae" for piano and orcherstra "Totentanz" Part II
Stravinskiy? He just created such a beautiful and massive and massively loud ruckus. To me, he's the unaware mother of heavy metal. In raw brutality and power and also naturality. Also a certain kind of primitivity which seems to have carried over into modern music and especially metal
In moder times, Roger Mayer, created overdrive and fuzz pedals for the Rolling Stones, Kinks, Jimi Hendrix, Jimmy Page and Jeff Beck. You Really Got Me and Satisfaction, aroused the world to overdriven guitar speakers. Blue Cheer from the 1960's San Francisco, created Heavy Metal before Cream, the Jimi Hendrix Experience or Black Sabbath.
To me, everything pre-Black Sabbath is proto metal. While bands like MC5, Blue Cheer, Deep Purple, and even The Kinks were on the path to metal, to me it begins with Sabbath. They didn't just have the sound, they had the subject mater, they had the look. They had slow, crushing doom metal riffs, and they also had riffs reminiscent of thrash metal. They did it all.