How to setup my e3000 linksys router to share music on my ext. hdd?

I just bought and e3000 router and i have no clue on how to set it up to share my music to all the computers when its plugged into the router. I know how to get into advance settings and stuff. can someone help me? please|||well, actually I think you do not need to do anything on the router. if you have connected your external hdd to your network it surelly have an IP address. in your windows computer just open "My PC" and in the address type, \\1.2.3.4 where the 1.2.3.4 is the IP address of your external HDD.