Iannis Xenakis's Nomos Alpha

Mathematician Marcus du Sautoy explains how Iannis Xenakis uses the symmetry of a cube to determine musical parameters in Nomos Alpha for solo cello; Paul Griffiths highlights the composer's innovations in the fields of sound and instrumental writing; and we hear an archive interview in which Xenakis credits his teacher Olivier Messiaen in helping him to find his own compositional voice.