A look at Chicago’s DJ culture in the ’90s.

One day in 1997, Sneak promised his friend and fellow Chicago DJ Derrick Carter a new 12-inch for Carter's label Classic, then spent hours fruitlessly laboring over a basic, bustling four-four beat. Finally, Sneak gave in and smoked the J he'd had stashed for later in the day. When he came back inside, he carelessly dropped the needle onto a Teddy Pendergrass LP, heard the word "Well . . . ," and realized, "That's the sample, right there." He threaded Pendergrass's 20-year-old disco hit "You Can't Hide From Yourself" through a low-pass filter to give it the effect of going in and out of aural focus, creating one of the definitive Chicago house singles.

The fabled venue where the Replacements, Hüsker Dü, and Prince emerged.

How a musical subculture evolved alongside a technological subculture:

Rave's rise mirrors the Web's in many ways. Both mixed rhetorical utopianism with insider snobbery. Both were future-forward "free spaces" with special appeal to geeks and wonks.