Chelmsford, Essex: Soundworld Publishers, 1999. First edition. Lge. 8vo. Wrps., 153pp. + numerous full-page photographs. Illustrated with drawings of the instruments. The book combines François Baschet's account of his life and travels, including his meetings and working relationships with Jean Cocteau, Edgard Varèse, Pierre Schaeffer, John Cage and many others, with a complete description and technical analysis of the instruments. It also documents the brothers' performance group with Jacques and Yvonne Lasry, and their numerous performances and exhibitions. Accompanied by a CD attached to the back cover in a plastic wallet containing a 70min. selection of eleven compositions. Fine.