Thresholds of Perception, a retrospective exhibition examining the work of Swedish polymath Catherine Christer Hennix (b. 1948) is on view through 8 September 2018. 18 & 19/F Although perhaps best known today for her 1976 record, The Electric Harpsichord, Hennix produced an eclectic body of visual art - encompassing painting, sculpture and installation art which deserves to be re-evaluated. Drawing on contemporaneous developments in Minimal sculpture and Conceptual art, Hennix used these formal strategies as a tool to express her unique intellectual cosmology which synthesises strands from intuitionist mathematics, Western metaphysics, Japanese Noh, and Eastern religious thought - an approach which her close associate Henry Flynt has described as “like a botanist grafting existing species to produce a hybrid”.