The story goes that Ben Harper, Joseph Arthur and Dhani “Son of George” Harrison conjured nine songs in three days for this supersession. It sounds like it. But there’s charm in their debut’s raggedness: See the three-part harmonies on “Restore Me,” which cut through the opening scribble like sun through clouds. Harper brings his liquid acoustic slide, Arthur his exquisite melodic sense. Drum guru Jim Keltner helps knit it all together, while Harrison, the multi-instrumentalist kid of the group, also brings unmistakable pipes: When he sings, “I’m still my father’s son,” it’s like, yes you are.