The feature only requires that you enable the Apple Music skill in the Alexa app and link your account, although you will have to add "on Apple Music" to your requests if you can't set the service as your default. We've asked Sonos if you can use this to send Apple Music requests to non-Alexa speakers. Even if you can't, though, this is still a big deal if you'd rather not pull out your phone (or get a different speaker) to use your music service of choice.

Update 4/17 6:35PM ET: Sonos has confirmed that you can send audio to its devices that aren't Alexa-equipped, but they have to be part of the same audio group (either in Sonos or Alexa).