As an addition to my previous comment, Sonos is expected to integrate music into its iOS app at some point in the near future. It was originally announced that support would come by year end but it's almost December now so I'm not sure whether or not they still plan on meeting that expectation.
It's overpriced anyway, IMHO.
There was an announcement by Apple and Sonos that they will be integrating it by mid-December and that beta software for Sonos owners will be distributed. It is on the front page of the Mac Rumors site @ Mac Rumors: Apple Mac iOS Rumors and News You Care About
BTW - I use the BeatsPill Bluetooth speaker and Apple Music works fine.