Brooklyn's Talib Kweli and Cincinnati-born D Hi-Tek collaborated as Reflection Eternal on the monumental album, Train of Thought, then waited ten years before making a Reflection Eternal follow-up, which is due out this summer. So I worried when the duo abandoned the Granada's stage last night at 11 p.m., having performed for a little over an hour. Obviously, these guys don't mind keeping a fan waiting."You know we couldn't leave y'all like that," Hi-Tek reassured as the duo quickly reemerged an