Why can I not play anything but Apple Music on my homepod?
When I ask Siri to play anything other than Apple Music (radio, Spotify, etc) she says she can’t do that? Can I only play off of Apple Music???
Siri on HomePod should be able to play from your unhidden iTunes purchase history, or your iCloud Music Library if you have Apple Music or iTunes Match. iTunes Match users have found they may need to disable the recognize my voice feature. If you don't have either subscription service you can AirPlay from your computer or iOS device.
tt2