The festival delivers a fantastic new work by William Forsythe, pure class from François Chaignaud and a Jan Martens revival that exasperates and enlivens William Forsythe's new piece Undertainment, for Dresden Frankfurt Dance Company, is fiendishly fascinating. Rhythmic gasps and hoots from the dancers build a sonic matrix in which the work unfolds. There's a physical matrix too, the ensemble forming lines, circl…
