The Hot New Hip-Hop Producer Who Does Everything on His iPhone Steve Lacy's smartphone has been his personal studio since he first started making music. A few minutes after Steve Lacy arrived at a dingy, weed-clouded recording studio in Burbank, the 18-year-old musician flopped down in a plush leather chair in the control room. Vince, one of the studio's proprietors, came in to show Lacy how the m
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