From the music blog Different Waters:
In the 70’s, Rainer Wehinger created a visual listening score to accompany Gyorgy Ligeti’s Artikulation. I (not me, someone) scanned the pages and synchronized them with the music.
Typically, scores like this are created by the composer as instructions to the players to improv. This is more a graphic after-the-fact deal. Still it’s cool and makes explicit the various sections of the electronic tape score. If you don’t know already, I groove on this kind of music from the 1950s and 1960s.
Why not buy some Ligeti?