I seriously cannot believe Microsoft even bothered putting an app on the google play store. On both my Nexus 7 and Note 4 it doesn't even let me log in! It gives me the same "sorry, something went wrong" message every single time. Since I'm going on vacation in a few weeks I thought Xbox Music would be a good music streaming service so I bought a subscription card. Wow, was that a massive mistake.
Judging by the reviews on the app I think it's clear that Microsoft doesn't care. I don't think its possible to get a refund on my purchase since I bought a card in-store not online so I'm out of luck.
If Spotify or Google Play had this many compatibility and feature problems on their respective apps it would be fixed withing a few weeks.
If you're reading this, have an android, and are considering getting an Xbox Music subscription, don't. At least until Microsoft steps up their game.