When his previous band, Pretty Girls Make Graves, called it quits in 2007, guitarist Derek Fudesco teamed up with former Cobra High drummer Marty Lund and former Hint Hint singer Pete Quirk to start a new one, the Cave Singers, to make rock music with a folk bent (think: Bob Dylan and Woody Guthrie). The Seattle three-piece had enough material for their first album, Invitation Songs, within months of forming. A second disc, Welcome Joy, followed two years later, and after the third, the-more-electric-than-acoustic No Witch, was released in 2011, the trio became a quartet with the addition of Fleet Foxes multi-instrumentalist Morgan Henderson on bass. Their first album as a quartet, Naomi (stream it below)—perhaps heavier on the rock than the folk—came out a month ago, and the Cave Singers (above, doing “Swim Club” for Seattle’s KEXP FM) are currently touring the East Coast. See their high-energy live show on Saturday night at Music Hall of Williamsburg.