Chromeboxes are full fledged PC's, so you can do most things on them you would a PC. I haven't used Chrome OS, but being that it's at heart a Linux distro, I don't see any reason why it wouldn't work as a music player. The Asus model on Newegg for $170 looks like a bargain for a HTPC. Remember, you aren't tied down to Chrome OS, you can also run any Linux distro on it if you so choose.