The only thing left at the Dandelion market is a shopping mall mate...
But yeah, warmup shows. Don't typically don't travel, cause when you have to haul ass halfway across the world, it costs money, which makes it hard to make it a freebie.
TBH, I wouldn't even be worried about it being free. Lottery to be able to buy tickets would work as well, and it'd cover some of the cost of actually setting this up (though free is nicer, of course)
I seem to remember B used to invite loitering fans in to have a listen to sound checks and warmups.