Cost: Free

Organizer: The Chicago Park District and the Chicago Department of Cultural Affairs

What to expect: Classical music from the Grant Park Orchestra and Chorus plus a roster of international guests.

Why to go: If you're at all intrigued by classical music, this is the top of the heap.

Additional info: Most events take place at the Jay Pritzker Pavilion at Millennium Park.

Centerstage Reviewer: Ben Rubenstein