Owners of the connected speakers from Sonos can now access Groove Music, the newly rebranded music service from Microsoft. The service, previously known as Xbox Music, officially launched alongside Windows 10 and is also available on the Xbox One.
"To try it in beta, select Add Music Services from the Sonos app on your phone or tablet. From your PC or Mac controller, scroll down to select Sonos Labs. You can head over to the Groove Music app page for more info including subscription info and key features."
Groove Music is currently available for Sonos speaker owners in a limited number of countries: Argentina, Australia, Austria, Belgium, Brazil, Canada, Denmark, Finland, France, Germany, Indonesia, Ireland, Mexico, Netherlands, New Zealand, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom, and the United States.
Source: Sonos; Thanks, @JoshDTech, for the tip!