Copyright infringement has kept classic rock cover group Flashbak from recording an album, so audiences have to hear them live for a family friendly-experience with songs meant to get people dancing. The Oakland-based group, which began in 2007, has seen some member changes before settling on its current lineup of musicians. Craigslist recruitments, word of mouth and longtime friendships brought together the seven men that make up the band. Members said they enjoy each others’ company. “We’re like a band of brothers,” drummer Steve Clyde said. “It’s a release from normalcy, a tension relief.” The group practices at least once …