DMX was born in Baltimore. Tupac Shakur went to high school there. Plenty of New York rappers are happy to tell you about the time they spent moving drugs down there. In recent years, the city has produced local cult heroes like Young Moose, Tate Kobang, and the gone-too-soon Lor Scoota. But Baltimore has never produced a national rapper of note. For years, that didn’t matter. We had club music.