Keith Jarrett will play a solo concert at Maison symphonique in Montréal on June 28, 2014.
Tickets will go on sale this Friday, March 7 at 12 PM.
Thanks to all the people who let me know about this (Alexander, Michel, Stephen, Jesse, Cameron, and Steve).
Update (March 6, 2014). Advance tickets for the solo concert at Maison symphonique in Montréal are already available. Thanks to Dominik for the information!