Did Iannis Xenakis write any music with intentions beyond absolute music? For example, music paired with other forms of art?
For example, Terretektorh (diagram pictured below) illustrates that Xenakis indicates for the piece to be played within and amongst the audience. Would anyone be able to elaborate on this piece or suggest any others? Here is a performance of Terretektorh.
Since everyone can perceive music differently, my question is not only about how musicians interpret a composer's intentions, but also how composers expect the public to perceive their work.
It would be helpful is someone could provide any specific stylistic ideas Xenakis had about his (or some of his) music.
EDIT: The question is intended to make emphasis in Xenakis' expectations as how the public consumes some of his compositions. In Terrektorh he expects the public to be around the musicians but ultimately it can be seen as a request for the musicians to be inside the public. Incidentally the public will be around the musicians. I would be interested to see if he made some demands or suggestions that are specific to how the public should consume some music of his. A ridiculous example: Ask the public to listen to this music while taking breakfast, or something like that.
Another request he could have made that is not very specific to the musicians performing the piece is if Xenakis asks certain composition to be listened while looking at certain painting, or some sculpture, any other form of art going beyond the music. It might probably be interesting if examples are given from other composers but I was interested specifically if Xenakis did this sort of requests.