Here's this weeks melody. It became a very popular part of my busking set when the game Fallout 3 came out. The first I heard of it was when spotty youths walked past wide-eyed in wonder that such an old dude could know a song from a game that they've only just got their greasy paws on.
So here it is for your delectation and delight.
This post is part of the ever bigger and lovelier open mic weekly contest and you can see links to all the other entries as they roll in, in the comments on @luzcypher's page here