Chicago post-rock staple Tortoise will perform with a number of other talented musicians as part of Constellation's ESS Gala charity event. 

Join ESS for their summer gala! They are taking over the whole Constellation and Links Hall space for a full evening of performances—this is a line up you do not want to miss. All proceeds go directly back into ESS's programs, supporting the artists they work with and helping the organization make space for creative experimentation. The evening will also feature food by Sauce and Bread Kitchen. Cash bar. "ESS has also grown into one of the most reliable and consistent presenters of sound art and experimental music in the city, hosting concerts in its cozy studio and partnering with Chicago arts organizations to hold events in more conventional spaces—and in some not-so-conventional spaces." - Peter Margasak, Chicago Reader "Simply put, Tortoise has spent nearly 25 years making music that defies description. While the instrumental quintet—comprised of multi-instrumentalists Dan Bitney, John Herndon, Doug McCombs, John McEntire and Jeff Parker—has nodded to dub, rock, jazz, electronica and minimalism throughout its revered and influential six-album discography, the resulting sounds have always been distinctly, even stubbornly, their own." - Thrill Jockey