Sonos and Apple have announced that Apple Music will be coming to Sonos on Dec. 15 as part of a public beta program. Apple Music will be able to stream on Sonos’ speakers for the first time on that date, and prospective users can join the beta on Sonos’ site. Of course, this means Apple Music tracks will be able to stream to multiple speakers in separate rooms. All Apple Music features will be supported, and a family account will allow…