yes, there is sheet music, but you cant play the halo theme, cause it takes like 3 guitar parts and 2 drummers, plus a choir for the intro vocals

finale- a site where you can make your own sheet music an post online (finale showcase) also, i bet other similar programs have done this, or you could just figure it out by listening to it over 9000 times

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Aloysius:

You hit a button and the Scarab turns into 20 Gauss Hogs.

The Search Bar:

I'm so cold and lonely, why won't you use me?

There's craptons of covers on Youtube on the piano and crap that you can learn from by ear.

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Aloysius:
-Less than half a of percent of players have the General rank on Xbox Live.

How is the General rank fair again?

Halo Fanboys. The next most annoying thing next to Jonas Brothers fanboys.