What do you study? http://fittor.top/keralascx-new/ iendansaxy hd One of the perks of the increasingly digital marketplace is being able to spot patterns in who buys what. Amazon did just that this week, when it released what it's calling the "Cities that Rock List" - a rundown of which cities are buying the most music from the online retail behemoth. Below are the 10 cities that topped the list.