70's Iron maiden, Pink floyd, black sabbath, Judas Priest, and Alice cooper.
Floyd was the 60's.... very much Pipers At The Gates Of Dawn ...
Floyd WAS/IS 60's + 70's + 80's + 90's + 2000's... same as Black Sabbath, Judas Priest, etc.
There are major problems with the arts going forward, but they're legal ones. Copyright laws will severely hamper musicians by eventually locking down every possible musical phrasing you can use, resulting in lawsuits galore any time someone writes something that isn't directly ripping off either their own previous work, or a pre-copyright work. Oh right, that's already happening...
Yeah, it is already happening, though the abundance of 'claims' have only happened in the last 10 - 20 years or so, when is seems fashionable to sue for plagiarism and copyright theft, etc. Thing is, if you wrote some music in the 60's and somebody 'copied' it or parts thereof in the 70's, why do you wait until 2000 and something to make your allegation[s]?
I recall somebody accusing Led Zeppelin of stealing a Grateful Dead tune to create Stairway to Heaven, but it was a frivolous claim and was clutching at straws, just as many other music copyright claims have been... and will continue to be.
Sadly, some musicians will hear a couple of bars of a new [or old] song and jump to the conclusion "Oi, that's MY music", when in fact it isn't, it's just similar. And I have to wonder just how many lawyers worldwide are sick of chasing ambulances, who are now trawling through music to find similarities and calling up various musicians to say 'We just found that 'so n' so' has ripped off your music and my law firm will to represent you.' ?