Being a classic one-man band member, he will have the compulsory heel-operated cymbals and drum, which will be accompanied by an accordion, a keyboard, different kinds of chest-mounted horns, and a bicycle horn to boot. Heck, right beside his tip hat lies a xylophone as well as different kinds of instruments that he can make use of in the middle of his performances for that added jazz.
Of course, do not expect it to sound the same as an entire orchestra, but at the very least, his effort deserves top marks considering the amount of practice he must have had to go through before he makes everything look so easy as though one can play such tunes in their sleep. Do you think that robots will eventually gain the upper hand over human creativity when it comes to music?