The Holey Moleys are a three-piece band from Somerville that marks a collaboration of tunefulness by Stephen Brodsky and Audrey Ryan, accompanied by Steve’s brother Matt Brodsky on drums. They play what they call “doom folk,” a kind of heavy folk music using a Rhodes keyboard, guitar, bass, and drums. Influences include Black Mountain, Black Sabbath, Buddy Holly, The Vaselines, Os Mutantes, Leo Kottke, Bert Jansch, John Fahey, and The Children’s Hour, among others.