Is it a song? Or is it another of the mood piece tracks with no beginning or end they've been moving toward lately?
It's an Alabaster DePlume song. The guy released the best album of the year, you should give Instrumentals Vol. 1 a listen.
@Skalap I just listened to the first track on bandcamp, then switched over to the Bon Iver piece and heard it immediately. I'm going to circle back to listen to the rest of that ADP album.