This is an experiment in applying the graphical interpretive score approach — which arises out of electroacoustic music studies — to analyzing an audio-visual composition. The focus in the first section of my 2005 piece "Autarkeia Aggregatum". The goal was to shed some light on how I conceived of the formal structuring of the work and of the audio-visual relationship.
"Autarkeia Aggregatum" is characterized by extended passages of strong isomorphism between the audio gestalt and the visual gestalt. So a single shape on the score can, in this case, reflect important aspects of both the visual and audio streams. Figuring out how to extend this approach to a work with more counterpoint between the audio and visual textures would take some significant head scratching. Let me know when you've figured it out.
I used GRM's Acousmographe software to create a graphic score and render a properly-timed cursor. I created additional graphic elements using Adobe Illustrator. I combined these layers in Apple's Motion. Overall, I wouldn't recommend this approach to anyone who is in a hurry.
I presented this as part of a presentation at the "Visible Sounds" conference at the Institute of Advanced Studies, Hebrew University, Jerusalem in 2010.