Apple Airplay is a great way to listen to any audio content from an Apple device, including all iOS devices like iPhones and iPads, as well as Macbooks.
Many customers have dedicated music servers; however, in the event the music server is not functioning, you can always use Airplay as a back up. Simply select Apple TV in the room you want to listen in and then use Airplay. The link below provides a detailed explanation of how to use Airplay.
Your Symbio Support Team