This limited 400 deluxe Book-like-Folder in outer Holder Box-Set is covering half of a lifetime in music-history of Pierre Henry, the mastermind for Electro-Accoustic and Experimental Avantgarde &Musique Concrete. It is more than a regular Retro-spective, it is the sharing of Pierre Henry’s personal listening organized by progressing themes and by technological progress. The box set emphasizes the unpublished, the comparisons and the contrasts.