How to stream iTunes Library from MBL over the internet? (outside of the LAN)

Hey Guys, I have a 1TB My Book Live and a MacBook Pro.

I put my iTunes library on the MBL and I can access my files at home, but what I’d like to do is figure how I could access my iTunes library on my MBL outside of my LAN (ie. at work) over the internet? 

Thank you 

Hello, see if the link below helps.