A powerful podcast that gives clear insight into whether or not there should be genetic testing, and how one family copes with the diagnosis that may be hiding in their genes.

Tremolo is introduced through the eyes of Henry, a caring teenage boy. Like many young people who have just completed their A-levels, Harri is excited about the future: travelling through Europe by train with his friend, then going to University to pursue his dream of becoming a surgeon in neurology. But, at an instant, his world turns upside down when his mother is diagnosed with eFAD – an early onset Family Alzheimer's Disease. In terms of genetics, there is a 50% chance that he and Gwenllian, his younger sister, will also suffer from the condition in the future. We will find out about the impact of this cruel condition on family relationships, financial pressures, everyday life, and hope for the future.

How to listen? 





Education pack

Download the education pack here



Gareth Elis: Harri

Creative team

Playwright: Lisa Parry

Director: Zoë Waterman

Composer and Harpist: Eira Lynn Jones

Editing and sound planning: Rhys Young for Hoot Studios

Dramatist and Assistant Director: Branwen Davies

Additional Music: Through Your Lygid Di, composed and performed by Yws Gwynedd

Additional Information

Alzheimer’s Research UK:

Alzheimer’s Society:


Tremolo is a podcast drama produced by Illumine Theatre in partnership with the Wales Gene Park and Theatr Genedlaethol Cymru, supported by the Genetics Society.