Sondheim in the summer: Chicago’s Millennium Park plays host to a weekend-long free tribute to the American composer Stephen Sondheim on July 14-16. The centerpiece of the event will be two concerts in the Jay Pritzker Pavilion that will feature the Grant Park Orchestra and Chorus, as wel as Broadway stars such as Mary Elizabeth Mastrantonio. Call 312-742-1168 or visit the Web site www.millenniumpark.org.
Twirls and boys: ‘Dancing Cowboys, Acrobats and Comics … Oh My!’—featuring the D.C. Cowboys dance company—will occur (for one performance only) on July 21 at 10 p.m. at Bailiwick Theatre, 1229 W. Belmont. Tickets are $20 in general and $25 for reserved center seating. Call 773-883-1090 or visit www.bailiwick.org.
Rhythm and dance: The American Tango Institute, 325 N. Hoyne, is offering same-gender tango classes on Wednesdays, 6:15-7:15 p.m. The cost is $90 for a six-week session. Contact Babette Klein at 312-771-1226 or Netza Roldan at 312-287-8406 or netza@americantangoinstitute.com.