Only the artist in question plays.
15 tickets? That's cruel.
Pay for it?! Petrucci did it for free. After all, it's comercial. But I did go to Jennifer Batten with a ticket (which I got for free, btw). And the best thing was, if you changed it in the bar, you got a free drink. And there were loads of yummy sandwitches, as many as you wanted. I love the Roman thinking; food and games to keep the people happy. Plus she was nice to talk to me and give me an autograph. She's also the only female guitarist I know of, who is really good.