The third day of the 2025 Chicago Jazz Festival brought a variety of jazz styles to Chicago’s Millennium Park. Alto saxophonist Gary Bartz played some funk, as well as the airy sounds of early Seventies electrified jazz. Closing out the day, Kermit Ruffins and the Barbeque Swingers played many familiar songs rooted in the New Orleans jazz tradition. Here are my thoughts and images from the day’s performances.