Giorgio Moroder - From Here to Eternity (1977)

Some people might make up ideas about the relative value of art music and dance music, but Giorgio Moroder is here to show you that, in the future, all such distinctions melt away under the austere pump of his drum machine. Chunks of this album are mixed together as a long track, enabling you to pretend that you are at a cool sunglasses party with ladies, and that the thump of the bassdrum is blood flowing to your big boner.

The opening/title track is structured like a conventional pop song, but then the coolest thing is that the next two tracks are free-form disco bombardments of variations on a main theme from the first song. After a quick little upbeat boner-tickler which functions basically in the same way as a conventional bridge, the first song is brought back for a final jam out. Also, I'm Left, You're Right, She's Gone is not only a showcase for clever wordplay and vocoder overuse, it is another great pop song based on a variation of that same theme that keeps popping up. This record is an example of having a vision, and fucking executing it. In the future.

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EDIT: As Aesop, the highly knowledgable and well-respected driver of the Cosmic Hearse points out, Giorgio also did music for the movie Scarface.