This is just a quick demo of a skill I've been working on. I hope it will be released soon. It provides integration with JRiver Media Center music software to give you voice control over your music library. You can voice search your library, add songs to the playlist, generate playlists based on a particular song or artist, etc. Check it out!
This will work with Sonos. My skill isn't really designed to play through the Echo (that would be a bit redundant), but through your home audio system. JRiver should work with Sonos. In the demo, I'm playing through my hifi, not the Echo. Steve