A set of bleachers is guided into place for tonight’s July 4 concert and fireworks extravaganza at the Yazoo & Mississippi Valley Railroad Depot and City Front. Rickey Jones was among city workers making preparations for the thousands of people expected for a concert by Compozitionz at 7 and fireworks, fired from a barge on the Yazoo Diversion Canal, which are scheduled to begin at 9. The U.S.-flag-draped depot is in the background.