The BPC (Bonar-Parkdale Presbyterian Church) is hosting the Parkdale Neighbourhood Church meal programs on Mondays, and it includes a small musical setup. So there's food, coffee, guitars, keys, maybe a hand-drum, and a ton of locals. It's a big place.
So that's Mondays from 11:30am - 3pm.
Here's a Google Maps Street View link to the door you have to use to get in
The address is 250 Dunn Avenue, and it's just south of Queen St.