80's. The musical spectrum exploded in all directions, and with technological advancement like no other decade, IMO. Some examples (albums):

Prince - Purple Rain
Public Enemy - Fear Of A Black Planet
Slayer - Reign In Blood
Giorgio Moroder/Phil Oakey - Electric Dreams Soundtrack
Def Leppard - Hysteria
Michael Jackson - Thriller
Michael Jackson - Bad
Yngwie Malmsteen - Rising Force
Metallica - ...And Justice For All
Frank Zappa - Broadway The Hard Way
Frank Zappa - Meets The Mothers Of Prevention

..there's loads more...

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