Caveat: Yes, I know there are already similar posts. Unfortunately, I'm really become smarter from any of them.
I have a visa for 3 months to travel as a "normal" tourist by the USA next year. Incidentally, I'd like a little bit, and really only just for fun, through music making to earn on the road.
Did anyone else do this before? Is it possible that as a tourist? If yes then strictly commercially !? Is there special permits from the authorities?
Thanks in advance! :)