This song serendipitously played on my iTunes this morning on my walk to work.
It is July Flame by Portland musician Laura Veirs. The art in the video is amazing.  From the YouTube page:

A few bits of trivia that might help enhance your viewing experience. * The video has 1,804 individual images in it. Yes thats a lot of photos! * The fireworks were made from over 180 individual peaches. * The puppets are painted paper glued to a backing. * The matches are one of my favorite things in the video. I loved drawing the cover. * The puppets/set took 3 weeks to design and build. Shooting took 2 weeks. *

enjoy! And Happy July!