 Concret PH

Concret PH (1958) is a musique concrète piece by Iannis Xenakis, originally created for the Philips Pavilion (designed by Xenakis as Le Corbusier's assistant) and heard as audiences entered and exited the building (PH = "paraboloïdes hyperboliques", "concret" = reinforced concrete/musique concrète).Edgard Varèse's "Poème électronique" was played once they were inside the building.