Concord Cafe is a really nice small venue for local bands, and with a very diverse mix of shows going on at different times of the month, you're likely to find something you like if you keep a close eye on their schedule. I will admit that many nights I'm just as likely to skip a stop in the CC when I see herds of young goths smoking out front, or if the crowd looks a little more tamborine-bohemian than I feel like mingling with. But the beauty of it is that it's a place for all kinds of people.
The main bar area is pretty small, although the front windows open up like doors bringing a lovely fresh breeze in the warmer months. The staff is always friendly and attentive, although they are the first to admit to the somewhat limited choices on the menu. But if you're looking for a small snack, a cheap beer or a hot coffee, don't be afraid to give the cafe a go. I've also heard good things about their brunch, although I have never been.
The stage in the rear is in a seperate room which is great for events with cover. The stage is small but the room is modest for this type of venue. Bands have enough room at their disposal to spread out a little, and with the cabaret style seating you can fit a reasonable seating of guests comfortably. I'm pretty sure for more upbeat shows they can also clear the tables and chairs for dance room only. A fun, intimate venue with little pretension and a lot of heart.