Vicky starts her search for choir members, meeting people with different types of dementia and at different stages. The youngest member is 31-year-old Dan, who was diagnosed with a rare form of genetic Alzheimer's.

Vicky sets out to see the impact of music on people in the later stages of dementia, and the three-month scientific study to see whether singing in the choir has any measurable physiological effect on them comes to an end.