I participated in the conference The Aesthetics of Absence in Music of the Twenty-First Century at the Department of Musicology the last couple of days. Judith Lochhead started her keynote lecture with a clip from the movie The art of flying by Jan van Ijken. This is a beautiful short film based on clips of flocking birds: The art of flying from Jan van IJken on Vimeo. Of course, I wanted to see how some video visualizations would work, so I reached for the Musical Gestures Toolbox for Python.