New Sherwin Williams HG paint commercial. cant figure out who sings the track to the commercial.?

sounds like an indie/folk singer, kind of like Laura Marling but I'm not sure who it is. song goes 'high and low, fast and slow, wind and willow tree, oh we just go together, we go together.' thats all the commercial plays. http://www.youtube.com/watch?v=Di-UC1y-oyY