........back to the middle ages and play your lute as a busking musician, eh?
Well, first you need to be aware that if people think you're a bad musician you can be reported, arrested and punished for that.
You could be made to wear the "Shame-Flute" which is a kind of mask which encircles your neck and encloses your fingers down its length, and you have to walk around wearing that thing.
The punishment imposed can be for playing badly, out of tune, or even singing lyrics which are frowned upon.
My hometown in Germany has the "Kriminal Museum" which features this mask and many others used for punishment. There's even one for quarreling females. It encircles both their necks, so where one goes, the other goes, and yes, they're vociferously shamed on the streets.
After all, those folks had no television, movie houses or internet.
Still wanna play for the medieval folks?
Bill