D espite being 23 years his senior, prolific producer No ID has a much more childlike air than ­Chicago indie rapper Saba, who is quietly pensive, if not a tad guarded. When we meet at No ID’s ...

When Chicago rapper Saba takes the stage on Tuesday night, Detroit’s El Club is a traffic jam of bodies, with little room to maneuver in any direction before bumping into a limb whose origin you ...