Milana Zilnik https://soundcloud.com/milanazilnik offered up a wonderful open collaboration piano piece called Darkness Awaits:
https://soundcloud.com/milanazilnik/darkness-awaits-milana-open-collaboration
It is quite, quite beautiful. Dark, haunting.
Being me, I added my signature guitar sound, some subdued drumkit drumming and a delicate touch of glockenspiel.
