I’d never heard of musician Jeff Mills before today. He describes himself as “techno/classical/experimental,” and that’s a perfect description of what he’s pulled off with his new release titled “The Occurrence.”

With this album, Mills has become the first-known person to meld the analog and the digital world — musically speaking, anyway — into a single product. One side of the album’s five-inch disc is a standard compact disc that plays in any CD player. Flip it over, though, and it’s a vinyl record that you can play on your turntable.