However, when I try to add the Groove service to Sonos, I get the following error web page as part of the Microsoft authorisation:
Of course, going to 'http://music.xbox.com' as instructed results in a 403 error. Good ol' Microsoft. Going to 'https://music.xbox.com'' redirects me to the Groove web player -- where I'm signed in to my account -- but doesn't get me any further.
What am I missing?
Best answer by pwt
I switched over to Google Music, uploaded my 15,000 tracks (out of a maximum of 50,000), and it's working well without requiring a subscription.