One would expect a hermit to be an unshaven, malnourished, raving madman. I’m not sure if playing a guitar counts as raving – but I can say he is definitely unshaven – so one (or maybe two) out a three is pretty good this day and age.
JupiterOatmeal
Comics and Such By J. Lyons, Broadcasting from the 27 Inexplicable Moons of the Jovian Giant
I think you are thinking of a Hobo, not a hermit. You think?