Midway through Jonathan Richman’s set on Saturday at the 9:30 club, a fan yelled “How about some oldies?” Richman responded, “How much older do you want, I’m almost 60.” This exchange illustrated three key things about the singer. First, in 1971-2, he recorded one of the greatest albums of the rock era – The Modern Lovers. Second, that was a long time ago. In fact, he opened the night with a reworked acoustic version of “Old World” (a favorite off The Modern Lovers), which exchanges nostalgia for longing for a break from the past (while still maintaining melody and lyrical structure from the original). Third, he still maintains a constant sense of humor that goes along with a childlike attitude. The latter was most important throughout his performance on Saturday, where his act blended humor, music, and simple lightheartedness into an overall joyous experience.