So I'm def not going to be able to make it.
I am at the Common all week, though. Big stage at the corner of Beacon and Charles. If you're looking at the stage, I'm in the white truck just to the left with a small sign on the back that says 'GMatter'. I get out right after the last show every day if anyone wants to grab a post-event drink. BTW - the concert is free, every day until Saturday.