The annual Non-Comm radio convention is in town at the World Cafe Live, starting today. It's an industry gathering of (mostly) listener supported non-commerical adult alternative stations, of which WXPN is among the most influential in the nation. So music biz types will be schmoozing and discussing the fate of major labels and role of social media networks like Facebook and Twitter in marketing bands and brands, but more importantly, they'll be lots of acts like the Avett Brothers playing for the assembled muckety mucks. Non-industry types can get in on the action, with a single Thursday through Saturday pass going for $75, or $100 for a pair. Tonight's slate includes The Heartless Bastards, The Deep Vibration and Paleface, tomorrow evening has Rhett Miller, the Avetts, Pete Yorn and Black Joe Lewis & the Honeybears, among others, and Marshall Crenshaw and Zee Avi are playing Saturday afternoon. Full schedule and ticket info here.