You tried going to https://www.arts.ubc.ca/events/event/hudson-jack-dejohnette-john-scofield-john-medeski-larry-grenadier/, and it doesn't exist. All is not lost! You can search for what you're looking for.
https://www.arts.ubc.ca/events/event/hudson-jack-dejohnette-john-scofield-john-medeski-larry-grenadier/