If you have a PS3, or android TV box, you can use a few different apps that will allow you to access a shared directory on your PC, and then stream any music or videos from your PC to the receiver over your network.
For PS3 I use the PS3 media server which works very well for MP3 music albums.
For the Android TV I use Plex TV which is very similar to the PS3 media server, and I also use the Sirius XM app via Google play store.
You can also use Kodi, as it has a few Music add-ons like "Radio".
There are also apps like Pandora and Spotify.
Also, the Yamaha receivers (not sure about latest models) come with NetRadio built-in which allows you to stream music based radio stations from around the world for free.
We use it quite a bit.
Plex TV PS3 Media Server Kodi 
