Mysterium was a performance by Ben Judd at James Taylor Gallery, London, loosely based on the unrealised and unrealisable opera of the same name, by Russian composer Alexander Scriabin. Influenced by his condition of synaesthesia – the intermingling of different sensory experience – and his belief in the occultist mysticism of Theosophy, Scriabin’s work was intended to be in the tradition of the Gesamtkunstwerk (a total work of art) in which different sensory experiences overlap and meld into a “consummate artwork” or “integrated drama.”