If you knew you could have a serious medical condition and could find out, would you? Harri's world is turned upside down when his mother is diagnosed with early onset familial Alzheimer’s disease, a condition he and his sister each have a 50 per cent chance of inheriting. Tremolo is an Illumine Theatre production in partnership with Wales Gene Park and Theatr Genedlaethol Cymru, supported by the Genetics Society. Harri: Gareth Elis Writer: Lisa Parry Director: Zoë Waterman Composer & harpist: Eira Lynn Jones Sound editing & design: Rhys Young Assistant director: Branwen Davies