c_royalcastle_beta2 question

Hey everyone!

I was hoping either the creator of the map, icswcshadow (on garrysmod.org) or someone who just happens to know tell me who made that song that icswcshadow has playing in the soundscape of his castle map (see title or below :P). I’ll admit I tried decompiling the map and seeing if there was a way to pull it out, but the .vmf becomes corrupt/unopenable which I’m assuming he somehow did on purpose, I just really want that music, it’s so cool XD
Anyone happen to know?

Link to the map: