renovatio.blogspot.com/ (more tutorials are available on my blog)
Here is my take (it's not exactly the same as the soundtrack, hence 'my take') on the Halo 3 Menu Music. From the first time I heard it I knew I wanted to play it and I finally took the time to learn and put it up on You Tube. It has the familiar theme from Halo 2 and a new piano melody. Marty is a genius!