Tonight's free concert in the Music Without Borders series celebrates the popular Dominican ballad bachata, featuring a few of the genre's pioneering artists, including Ramon Cordero, El Chivo Sin Ley, and guitarist Edilio Paredes. They'll be joined by newcomer Joan Soriano. Cape Verdean singer Mayra Andrade kicks things off at 6:30 PM. The show, like all others in the series, takes place at Pritzker Pavilion. For more information, call 312-742-1168.