The recent events regarding the legality (or not) of same-sex marriage has clearly inspired some of the music on “Poseidon and The Bitter Bug,” the Indigo Girls’ first independent offering in two decades—a move that came after they left Hollywood Records (and the major-label game altogether) last year. “Fighting For The Love Of My Life” points an accusatory finger at the results of the passing of Proposition 8 in California while also celebrating the new revolution that has brought so much change for gay men and women around the country. Also, the R&B-esque “Digging For Your Dream” encourages listeners to incessantly fight for what they believe in. For their upcoming stop in Chicago, expect the set list to heavily showcase tunes from the new disc alongside favorites like “The Power of Two” (featured on the soundtrack of “Boys on The Side”), “Galileo” and “Closer To Fine,” which should be enough to keep oldies fans away from the concession stand. (Ernest Barteldes)
June 26, Ravinia Festival, 418 Sheridan Road, Highland Park, (847)433-7983, $45.