In addition to today's Xbox Video release for Windows Phone, Microsoft has also released Xbox Music for Windows Phone 8. With the Xbox Music app and the required Xbox Music Pass, users can finally explore, stream and download millions of songs to their Windows Phones. Xbox Music allows to see artist details with pictures, bios, album lists, and related artists, manage the personal music collection, shared across all of compatible devices and PCs, explore top songs, featured artists and recommended albums to easily discover new music, download songs for offline playback, create and manage playlists that automatically sync across your PCs, tablets, Xbox and the web as well as it features Radio which instantly creates playlists based on favorite artists.
Xbox Music is - like its video service Xbox Video - the successor of Microsoft's previous Zune branded line of products and services and allows to stream ad-free music from a catalog of tens of millions of songs. To use Xbox Music, it requires an Xbox Music Pass.
Cheers ~ Arne