Custom Sounds Tutorial

Can anyone help me find a tutorial to add custom music to a map?

Thanks.

http://www.hl2world.com/wiki/index.php/MP3s_and_custom_sounds_on_your_map
http://www.editlife.net/tutorial.php?tutid=44
http://www.chatbear.com/unity2/12/254,1177903137,18102/1077547/20#30

Is it really that hard to type:

“Hammer Editor Custom Sounds” in google?

Gotta love that site.

That I do, that I do :v: