There is something about audio that is uniquely appealing. It's great simply to lie down and relax, close your eyes, and listen to a good tale.
It feels as if the brain is relieved of all the visual stimuli, and imagination is freer to roam.
(Video can be great too, and so can words in pixels or on paper; but audio doesn't get as much play, in the touring world, and it's a welcomed change of pace sometimes.)
Here's some audio by an out-of-shape former serious athlete, who told her boss to get stuffed, and took off on a long trip,
taking off on tour:
[If anyone knows of other touring-related audio, please feel free to post.]