This classical music performance film finds The Jack Quartet (violist John Pickford Richards, cellist Kevin McFarland and violinists Ari Streisfeld and Christopher Otto) interpreting the late avant-garde Romanian composer Iannis Xenakis (1922-2001)'s complete works for string quartet. Selections include the 1983 Tetras, the 1990 Tetora, the 1956-62 ST-4/I, 080262 and the 1994 Ergma.