Concert. The Best of Chicago a capoella: A 20th Anniversary Celebration. 8-9:30 p.m., Logan Center, 915 E. 60th St., 773-702-2787, $12 students, $25 seniors, $30 general admission, $38 preferred seating. Folk, religious and pop songs to kick off the group’s third decade. Buy tickets at chicagoacappella.org.
Reception. 8-11 p.m., Arts Incubator, 301 E. Garfield Blvd, 773-702-9724, free. For the poet avery r. young’s new exhibit examining the murder of Trayvon Martin, “groun(d).”
Sunday at Rockefeller. 11 a.m.-12:15 p.m., Rockefeller Chapel, 5850 S. Woodlawn Ave., 773-702-2100, free. Communion with music from the Rockefeller Chapel Choir.
Second Sunday. 1-4 p.m., Hyde Park Art Center, 5200 S. Cornell Ave., 773-324-5520, hydeparkart.org. Participants create a communal mural in the center’s public conference room under the guidance of a teaching artist, as part of a city-wide monthlong drawing festival, “Big Draw Chicago.”
Author Talk. 2-3 p.m., Seminary Co-op Bookstore, 5751 S. Woodlawn, Ave., 773-752-4381, semcoop.com. Robert B. McKersie discusses his book, “A Decisive Decade: An Insider’s View of the Chicago Civil Rights Movement During the 1960s.”
Family Program: Junior Archaeologists. 2-4 p.m., Oriental Institute, 1155 E. 58th St., 773-702-9507, $5 members, $9 non-members. Pre-registration is required. Children and parents experience a simulated archaeology dig. For ages 5-12, accompanied by an adult. To register at oi.uchicago.edu/order/classes.
Junior Archeologists. Children and parents have a chance to dig into our simulated excavation in the Oriental Institute’s Kipper Family Archaeology Discovery Center. This program also includes an interactive guided tour of the galleries. Suggested for ages 5 to 12. Children must be accompanied by an adult. Oriental Institute, 1155 E. 58th St., 2-4 p.m., $5 per participant with membership/ $9 for non-members, 773-702-9507.
37th Season Chicago Ensemble Series. International House, 1414 E. 59th St., 3-5 p.m.; tickets are $25 for general admission and $10 for students with valid ID, free for I-House Residents, 773-753-2274.
Concert. 3-5 p.m., International House, Assembly Hall, 1414 E. 59th St., 773-753-2274, $25 general admission, $10 students with ID. The Chicago Ensemble peforms its first performance of the 37th season.
Concert. Sunday Night Jazz. 7:30-11:30 p.m., Room 43, 1043 E. 43rd St., $10 adults, $5 for university students. A Hyde Park Jazz Society event. Drummer Xavier Breaker performs.
Tot Lot. 9 a.m.-noon, Hyde Park Neighborhood Club, 5480 S. Kenwood Ave., firstname.lastname@example.org, classes are $9 drop-in, $45 for a 10-session pass or $65 for a monthly pass. This class is intended for children 0-4 and their caregivers or parents to get together on a regular basis to learn, play and benefit from one another’s company.
Tot Lot and Outdoor Playground. 9 a.m.-1 p.m., Hyde Park Neighborhood Club,
5480 S. Kenwood Ave., 773-643-4062, hpnclub.org, $9 drop-in, $45 for a
10-session pass or $65 for a monthly pass.
Community Yoga with Chaturanga Seeds: Beginner Level. 10-11 a.m., Arts Incubator, 301 E. Garfield Blvd., 773-702-9724. Instructor Mela Woods offers an opportunity to learn yoga.
Free, Rapid, Anonymous HIV Testing. 11 a.m.-3 p.m., 5710 S. Woodlawn Ave., Room 302, 773-834-1005, lgbtq.uchicago.edu.