"Art is anything you can get away with," says Simon, an art dealer with an eye to a quick buck, in Tim Crouch's solo show. Crouch certainly gets away with a lot, but nobody is going to accuse him of armed robbery in charging for this quirky, funny and tragic tale of life, art and what happens if you hold your arm above your head for more than 30 years.
Something of a shaggy-arm story, this show plays with the convention of the shared experience of theatre: what it means to you will be entirely different from what it meant to me. It even offers the audience the rare opportunity to see their own possessions on stage: at the start, Crouch invites us to empty out our pockets and bags and hand over their contents. Somebody's muffin becomes Crouch's mum, a packet of tissues the family dog. A naked Action Man figure, hand raised above its head, represents Crouch.
It was at the age of four that Crouch made what could with retrospect be seen as his first artwork: the withdrawal of bowel movements for a month. In 1973, his Great Silence drove his parents to distraction - but it was his decision, at age 10, to keep his right arm raised above his head for the rest of his life that came to be the defining gesture of his life. Examined and written off by psychiatrists and his family, Crouch drifted into adulthood until he was finally discovered and feted by the art scene. What had begun as an empty gesture became imbued with enormous significance and meaning; the thing that was killing him became a lifeline.
There is a knowingness, a sense of an in-joke about this piece, that could make it irritating. But Crouch is the most engaging of performers, and he is actually exploring on stage the nature of art and performance itself, taking risks in the process: the Great Silence lasts several minutes, which in theatrical terms is the equivalent of several centuries. At these moments, Crouch is armed and dangerous.
· Until August 23. Box office: 0131-228 1404.
