I recently realized I have no idea how bands book tours, especially if they move all the way up to amphitheaters amd arenas. I'm guessing when your starting out you have to call nightclubs and beg them to let you play. But what about when a band moves to theaters? Does the band have to request to play at a theater, and somehow prove they can draw a crowd? Do they suffer any kind of financial penalty if the show doesn't draw? Does the process flip when you move up to big festivals and outdoor arenas? At that point are you being invited to play?