The long wall of the building on Detroit's Woodward Avenue just south of Grand Circus Park is splattered with a Ray Charles quote: "I never wanted to be famous. I just wanted to be great."Greatness is a kind of mantra for the new Detroit Institute of Music Education (DIME), a university-styled school that will be residing in this pop-up space until late summer, when it moves into a permanent facility in the New Dime Building at 1265 Griswold St.