If you haven't checked out the line-up for the Sled Island Festival yet, you should do so (http://sledisland.com/)
There's so much to do and see that you can't really make events for everything. All I can suggest that if you're looking for a festival buddies, RSVP to this event and get the ball rolling! :)
If there are specific events that you'd like to go to, "suggest" a meetup and it'll go straight an event!
Now for the broken record statement:
If you RSVP but don't have tickets yet, please be clear about that so your fellow Musicophiles aren't left holding a ticket with no one to go with! That would suck.