Iannis Xenakis: Metastasis

HN uses it as an example of radically different musical notation and as a favorite, if challenging, modernist piece that anticipates sounds like the THX Deep Note.

A score-following video of Iannis Xenakis's 1950s orchestral piece Metastasis, showing his graphic, mathematically derived notation as the music plays. It is a landmark of post-war modernist composition.