Hidden Soundtracks, not on the OST

The first song has been posted before. -->[url=http://www.prometheus-movie.com/community/forums/topic/10476]Prometheus OST Missing Track[/url] A handy way to verify if something might have already been posted is by using the "Search" function provided for titles and "Google" for post bodies. :D

I know the first was posted before. I just grouped them together together as a series. ;) What do you think of the second track?