The retro-rocking quintet of Adam & Dave’s Bloodline punctuate the release of their new EP 2×2 on Founding Fathers Records tonight at Johnny Brenda’s. With 2×2, the group is taking a slightly darker heavy psychedelic approach. The groove is still omnipresent, but the guitar work is more mercurial and effect-infused. The air appears to have thickened while the lights have dimmed. The band’s sound will mesh well with the hazy garage rock of St. James & the Apostles, balancing Jamie Mahon’s growling preacher vocals and raw guitar with the not so common injection of organ and artillery style drumming. Arrah and the Ferns round out an excellent evening playing what can best be described as a combination of folky-poppy country-blues along with Bloomington, Indiana’s Sleeping Bag. Johnny Brenda’s, 1201 N. Frankford Ave., 9pm, $10, 21+ – Michael Colavita