iTunes library playback via Roku?

Apologies if this is off topic, but I figured someone here probably has done this.

With a roku box, is there a way to play back music from a local computer's iTunes library? And I'd really like to be able to use existing iTunes playlists including smart playlists as well as ratings and play counts.

Is there anything that does that? The only roku/itunes thing I've seen in my searching is some sort of cloud service which I don't need. I'm using Plex for video and it's fantastic - looks like they're working on music support but still a ways off so I'd like to find something that works in the meantime.

Thanks in advance.

Thanks for the info. Did you have it set up to exchange things like play counts and ratings with iTunes and how well did that work?