Best Free Chicago Summer ConcertsIt's the season for big-ticket concerts and weekend-long lineups with multi-day passes priced in the hundreds. Luckily, for us cheapskates, summer’s also the season for live music events of the free variety. One of the perks of big city life is there’s plenty of free entertainment, and you don't have to look too hard to find it. The hefty schedule of outdoor festivals downtown and in the neighborhoods add up nicely to a summer's worth of live jams on the cheap, and there's something for every taste. Here are my personal picks for the top local freebie shows for Summer 2012.