Tin Hat Trio - The Longest Night

This is a really beautiful instrumental song. The video is a little strange but not inappropriate. The large eyes on the people are a little unsettling at first but by the end of my first viewing of the video I had already grown to like them. If you want to find out more about Tin Hat Trio (who currently goes by just Tin Hat, I think) you can visit their site.
This song is also featured in a game called Triachnid that's pretty fun to play. It reminds me a tiny bit of World of Goo which is also very entertaining (in my opinion).