Send music from computer to Receiver?

I am wondering if you can send music from my computer to my reciever.
I just recently purchased a Yamaha RX-Z1 receiver. I have quite a few songs that I enjoy and would like to connect my computer through a sound card to my receiver. When I am entertaining I would like to play a certain group of songs sent from my computer to receiver. I don't know if its possible. Any help would be greatly appreciated.