A zone is a single source of streaming music in your location, and each zone is a separate subscription. If you add 3 zones you will pay for 3 subscriptions, and you can play music in 3 different areas. For example; the bar, the lobby, and your restaurant. Learn how to add a zone here.
You need to connect each zone to a player. Only one player can be connected to one zone at a time. Find your player here.