With the Summer update last month Microsoft brought background music support for Xbox one preview members. Now after testing it almost for one-month, today company has rolled out a new update for its Groove Music app bringing that experience available for everyone. Meaning that even though if you’re not Xbox one preview member, you will be able to enjoy this feature with your groove music app.
https://twitter.com/ellenment/status/766401915345174529
The update has been live and can be downloaded. Make sure that you look for version 3.6.2395 on store to enjoy this feature.