I thought people would want to hear Irish music tonight
My parents play in a traditional Irish band and I think they are playing in Port Colborne, Ontario at the Winchester Arms. It's a little out of the way but I believe the Winchester Arms (which is a franchise) has a webpage that is complete with maps.
The band is called Barley Brae and they have a webpage at http://www.vaxxine.com/barleybrae
Sorry I can't suggest something closer to Toronto...but this pub is quite nice.
Matthew Adams