Connecticon (connecticon.com) occurs once a year, always on the 2nd Saturday of July, at the Connecticut Convention Center on Columbus Blvd in Hartford, CT. There are many things to do there, just one of which is Rock Band in the video games room:
2 setups will be present, each with 700+ songs. Both will have guitars, mics, mic stands, keyboards, and drums. One of them will have ION drums with cymbals for pro-mode play.
A tournament will be held on Saturday. It will involve both game score and stage performance elements.