There’s very little of what conventional wisdom would call dancing in this clip. We know the woman can dance, because occasionally she’ll swing a leg (or a chair) with the honed fluidity that only a dancer’s body has. But, as is characteristic of the choreographer Pina Bausch’s work, this doesn’t quite feel like a dance performance. Fittingly, there’s no English translation for Tanztheater, the experimental Weimar Germany artform that Bausch reinvented in the early ‘70s. Defined by its spirit of invention and hybrid approach: it’s theatre, it’s dance, and it’s art. This willingness to go beyond the boundaries of convention, and her understanding of humour, tension and surprise is what makes Bausch’s work so intriguing, and so seminal. Great dance, whether it’s onstage or in a nightclub, is idiosyncratic; no amount of technical skill can substitute for the personality to improvise.