I found http://www.quakeworld.nu/forum/viewtopic.php?pid=56375 through google, trouble is that neither cdaudio or cd play x commands are recognized, having -cdaudio in launch options doesn't change anything.

This is the best designed / optimized Quake client that I've seen, the game looks and runs better then Quake Live, it just needs those awesome Quake beats.

Another problem I'm having is that when I save a single player game to load and resume later, I spawn as a spectator with no weapons. Any way to fix this?

Loading problem appears to have just been a bug, working fine now. Would still like to get that music working though.

See pic
http://img210.imageshack.us/img210/9964/ezquakegl20100809190805.jpg

Make sure you added the -cdaudio option into the command-line options properly. You didn't state how you launch the game nor what is your operating system so I can't help you with that at the moment.

Once -cdaudio command-line option is used properly, the command "cd" becomes available, which controls the cd playback.

http://img197.imageshack.us/img197/4936/86302614.png

This is the shortcut I use to launch the game, OS is win7 64bit

You have --cdaudio in that screenshot. Try -cdaudio as above. Probably not that simple though