Well, around here, it is more acoustic guitar, singers one person band than other types maybe.
Just an amp and an acoustic guitar, mic.
And I said a little extra, not a bunch more.
Oh well!
And in that link I gave, it seems that the equipment is there all the time, just not the keyboard or guitar or perhaps the mic with the musician there. May not make as much though, but lot of places like that as long as the songs are known I guess.