I can't figure out how to get Siri working now that we have AirPlay2. I have added the speakers to HomeKit, setup them up in their named rooms but when I ask Siri to "play Dave Matthews in Living Room" she works for a second then says she's unable to play that. I have Dave Matthews songs downloaded on my phone (ie not trying to stream them from the cloud).
For clarify, if I don't have the speaker added to HomeKit properly then Siri will reply, "I can't find that device".
So her saying "I am unable to play that" is a different error.
I do not have the "Apple Music" service but I have songs that are purchased from the iTunes store that are either on my phone or "on the cloud" so I can download them. I am able to play the "cloud" songs without downloading them directly to my phone and use AirPlay to send them to any of my Sonos One speakers.