Of the six new, original songs Prince debuted at First Avenue on August 3, 1983, three–“I Would Die 4 U,” “Baby I’m a Star,” and “Purple Rain”–were sourced directly from the concert recording for his upcoming album and film. A fourth, “Let’s Go Crazy,” was re-recorded in short order at the Warehouse rehearsal space; while a fifth, “Electric Intercourse,” never saw official release in Prince’s lifetime. But it was the sixth–a cerebral punk-funk workout called “Computer Blue”–that would occupy Prince for the rest of the month, with weeks of overdubs spanning both Minnesota and Los Angeles.
The genesis of “Computer Blue” was in the intensive rehearsals at the Warehouse in summer of 1983. As keyboardist Dr. Fink recalls in the Purple Rain expanded edition liner notes, “We were jamming at rehearsal one day and I started to play a synthesizer bass part along with the groove. It happened to catch Prince’s ear, so he had our sound man record the jam.” The band continued to work on the song and, according to drummer Bobby Z, had it “just about fully rehearsed” when Prince threw another element into the works: a lyrical guitar solo based on a melody by his father, John L. Nelson, later to be dubbed “Father’s Song” (Revolution 20).