It's a video. Support me on Patreon: https://www.patreon.com/vihart
You can download it from Vimeo: vimeo.com/vihart
Or torrent it, see http://vihart.com/list-of-torrents/
Also the sheet music for the Mary quartet is here: http://imgur.com/a/hgy9Q#0 (if you happen to play/sing it, do let me know!)
And individual mp3s are downloadable on my Soundcloud: http://soundcloud.com/vihartvihart
TAKE EVERYTHING I DON'T WANT IT ANYMORE
Victoria Hart, commonly known as Vi Hart, is a self-described "recreational mathemusician" who is most known for creating mathematical videos.
Music: Joy to the World (twelve tone version) by Vi Hart (soundcloud.com/vihartvihart) is licensed under a Creative Commons Attribution 3.0 International License