I think each store, or at least region manager would decide what they play. I've already 'done the loop' and visited 9 stores in the past couple weeks and while there are a couple stores that followed the playlist, some just had normal radio or personal CD's playing. You're best bet is to just ask the manager, it never hurts to get in good with them anyways. I've had a few really good conversations with staff and managers about haunt ideas, which items are on the perpetual return/repair cycle (off the record of course!), and of course when the displays are going to be up for grabs and how to get on the 'call list'. You can also find out which locations have hold over stock from last year if you missed a prop. In general, most of them are Halloween fanatics too with collections that they might buy/sell/trade with other enthusiasts. So asking about the playlist might just open up a whole new branch of contacts along with scratching that earworm. As far as the song you're looking for, I'm guessing it's not Werewolf Bar Mitzva since there isn't a headless horseman in it, otherwise it's the closest I could think of.
