'Music is like a crystal ball that is nothing in itself, but in which one can see things.' Not representing the world in music but creating a world: it is the creative act of Iannis Xenakis, 'bringing into being something out of nothing. Engendering the unengendered'. This CD brings together, for the very first time, the complete works that Xenakis composed for solo cello '+ 1'. They illustrate the evolution of a unique compositional trajectory, underpinned by energeia, the active creative force of Greek thought, which shapes a thing up until it happens: a proof of sound force in which energetic currents and dynamic surfaces are confronted. Æon hereby continues its collaboration with cellist Arne Deforce whose inspiration and weight of artistic evidence reach new peaks with this disc.