Keith Jarrett will play with Gary Peacock and Jack DeJohnette at the Symphony Center in Chicago on October 19, 2014. Single tickets should go on sale on August 8, 2014:

"All 2014/15 Single Tickets and CYO Packages will be on sale August 8, 2014.

Selected performances will be on sale July 2014. Details to be announced.

In the meantime, 2014/15 single tickets can be purchased online by adding a subscription package to your cart, which will activate next season's single ticket purchase options at special subscriber prices. You MUST have a 2014/15 subscription package in your cart or pricing will not be adjusted. "

Thanks to Sean for the information!

Update (June 6, 2014). Single tickets are now available. Thanks to Ron for the update.