CHICAGO — Twice-convicted R&B singer R. Kelly’s first hearing in Cook County court after his Chicago federal trial left observers with little clarity about how the lingering county cases would proceed. Thursday’s hearing was four minutes. Kelly, who is in federal custody awaiting sentencing, was not present. Attorneys got admonishments from Associate Judge Lawrence Flood that they should “start looking toward a resolution of these matters or trial.” Assistant State’s Attorney Tene McCoy Cummings said in court that prosecutors were in the process of ordering and reading transcripts from Kelly’s…