The presentation is at http://www.slideshare.net/ebuie/user-experience-and-the-human-spirit-three-stories-of-connection-11409980
Original MIDI file (in MP3 format):
What I learn from (with my part highlighted):
And the entirety of the final recording: http://collegiumcantorum.org/recordings/DuFay_003_VasilissaErgo.html