Caleb spends a lot of time playing music. He has recently joined Victoria Lee and New Ground. I think this band will keep him pretty busy. He plays with other bands, too. I'm not sure what a person does when the schedules of the different bands conflict. (So far, he hasn't signed any contracts.)
Tomorrow night he will be at Common Grounds with Hi Grass, filling in for the mandolin player.
I guess we have to credit Roger with teaching Caleb to play. Roger's been playing for ages. Here he is on his bunk in Vietnam, picking and grinning.