Here’s another clip of his performance where you can see that he’s unaccompanied on stage; it also reveals more about where he is performing and adds insipid French commentary:
http://www.youtube.com/watch?v=t3nzAikczEQ
Raising a family in Thailand // Documenting Issan food, culture, music, and people
I couldn’t hear the French in the background very well (“très bien…[???]”?), but the foreground dude is simply saying, “Respect!”
Kevin