On the stage at Music Hall, the boys beamed with confidence. Earl's falsetto is so odd, so potentially off-putting that, even if his sometimes missed notes are cringeworthy, the earnestness in which he sings still grips. Combine that with his bandmates: bassist/harmonica player Kevin Morby and multi-instrumentalist Jarvis Taveniere. While bouncing back and forth like a slinky, Morby acts like a live-action metronome, jumping to the microphone for harmonica solos, bobbing back for bass lines. Taveniere is more introspective, staring down as he strums, and quietly contributes back-up vocals. On tours, Aaron Neveu plays drums, popping off his own chipper beats, acting as a sturdy foundation.