Some chill! Enjoy!
It's a remix of All Levels At Once -- Lament from Tessellate.
Check description for more stuff and links!

It was a easy to remix 'cause Levels remix pack is truly awesome!
Original: http://www.youtube.com/watch?v=Vq4ibbIWXyE
Check all songs from Tessellate here: http://alllevelsatonce.bandcamp.com/album/tessellate

FREE DOWNLOAD: https://soundcloud.com/alexsanify/all-levels-at-once-lament