Pierre Schaeffer - Peu Banal (Impromptu)

Audio : A1 from 'Le Trièdre Fertile'
http://www.discogs.com/Pierre-Schaeffer-Le-Tri%C3%A8dre-Fertile/release/775402
Visual : A 3-dimensional schema for the analysis of sonic objects - from Pierre Schaeffer - À la recherche d'une musique concréte (1952)
http://eamusic.dartmouth.edu/~music3/week2.html