Free Energy, courtesy. Many bands would use the opportunity of a light crowd to work on new songs and timing, play it safe and get back on the road quickly. Slim’s was noticeably under-attended Saturday night for Philadelphia-based power pop quintet Free Energy. That’s a bit surprising, since their 2010…

Free Energy, courtesy. It would be fair for some artists to hold a grudge or be at least a little bitter after being dropped from two record labels following their debut album. But for Free Energy, whose partnerships with James Murphy’s DFA Records, as well as EMI, disintigrated, that’s not…