As part of the ongoing Grant Park Music Festival, the Grant Park Orchestra & Chorus will perform selections from The Pirates of Penzance and The Mikado, two comic operas by Gilbert and Sullivan. The free shows take place Friday at 6:30 PM and Saturday at 7:30 PM at Millennium Park’s Pritzker Pavilion (Michigan & Randolph). Christopher Bell conducts; Kathryn Kamp, Frances McCafferty, Hoss Brock, Richard Suart, and Andrew Schultze perform. For a PDF of the program, click here.