You have too much time on your hands.
I know a millionth the amount of post-1980 metal that the others on here do so I'll offer some comments on the originators.
Elvis, yes fine, but the real roots of metal come from Chuck Berry who you have, and Little Richard and Jerry Lee Lewis which you don't - although how you'd find a representative album, when they were very much singles artistes, is a tricky one,
Kiss, I think 'Alive' was more influential on the 'hard rock' community, Destroyer was a great album but it was very 'pop'
Montrose first album missing, that was the blueprint for Van Halen 1
Budgie were the de facto heavy metal band in the UK for the five or six years in the early 70's for folk who couldn't be arsed to queue for a week for Black Sabbath tickets
James Brown should have a mention for his focus on rhythm over melody
Humble Pie 'Performance - Rockin At The Fillmore' should be in there because they set the benchmark for swagger and cockiness
Likewise Deep Purple Made In Japan.
Beatles - give me a break
Originally Posted by KnowingMeKnowingYou
Originally Posted by dieselmonkey
Must be a Derby thing.
Please return when you're relevant.