Black Sabbath - All the Ozzy-era albums minus "Technical ecstasy", with the exclusion of two songs. Also the ones with Ronnie James Dio in the ranks are ageless heavy metal classics.
Opeth - Still life, Blackwater Park.
Burzum - Hvis Lyset Tar Oss, Det Som Engang Var.
Arcturus - La Masquerade Infernale.
Fields of the Nephilim - The Nephilim, Elizium, Earth Inferno.
Amorphis - Elegy.
The Mahavishnu Orchestra - Birds of Fire.
Deep Purple - Machine Head.
King Crimson - In the Court of the Crimson King, Red, Lark's Tongues in Aspic, etc.
Bo Hansson - The Magician's Hat. I have just acquired the album and I have to say that it is truly captivating music!
The Sex Pistols - Never Mind the Bollocks.
CMX - Aura, Aurinko, Discopolis.
Genesis - Selling England by the pound, etc.
King Diamond - Them.
Rush - Moving Pictures.
Joy Division - Closer, Still.
Ulver - Everything.
Led Zeppelin III, IV.
Emperor - In the Nightside Eclipse, Anthems to the Welkin at Dusk.
Ozzy Osbourne - The Blizzard of Ozz.
Massive Attack - Mezzanine.
Diamanda Galás - Everything.
Nick Cave and the Bad Seeds - Murder Ballads.
The list is practically endless.