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?