From the archives: Warren Sentence's 2001 review of Yes in concert.
The Jefferson Park megafestival has four stages of music—there will be polka—and more than your fill of Polish cuisine. $7http://topchicago.org/
The quality of an improv show is directly proportional to the quality of the improvisers who create it. Put together a group of kids who know nothing about the world—or themselves—and you get a lot of cliches and imitations of bad TV. Put together an ensemble of strong, experienced actors who happen also to like to improvise and you have the optimal conditions for a piece filled with well-articulated characters in amusing relationships and interesting situations. That latter was the case with Natural Gas, the Gift Theatre's house improv team, on the night I saw them. As in every improvisation, not every moment worked, and some actors made basic mistakes, like introducing inconsistencies. All the same, their show contained more than the usual moments of spontaneous delight—and occasional splashes of pure inspiration. —Jack Helbig $5