Bdubs x Grian x Joe = Banjo

Joe is your average country bumpkin.
Bdubs sounds and acts like a city slicker half the time. Probably doesn't understand that chocolate milk doesn't come from brown cows.
Grian is kinda in the middle, but if I were to decide, he leans more towards a city boy.

Joe teaches the two how to play the banjo? Just as a tribute to the ship name.