Detroit has long be lauded as a breeding ground for music elite. Berry Gordy and the illustrious Motown Records, the trailblazing production of James “J Dilla” Yancey, the rabid and equally sharp-witted rhymes of Eminem; these men are but a drop in the bucket when surveying the musical legacy of the Motor City. But now in the wake of a crippled auto industry, a crumbling economy, and a failing education system the city is ripe for new unfaltering heroes. Backed by heavy bass lines, resonant horn samples, and gritty snare drums the erstwhile Derek Cooper, 28, is ready for his place in the rap pantheon. The East Side resident, who released his debut—A Pipe Dream And a Promise—earlier this year, recently spoke to URB about his troubled city rebounding, what it’s like working with Prince Whippa Whip …