the idea for the choir came from dr mary mittelman. centre the center of excellence of brain aging. mary mittelman studied how to improve the wellbeing of family care givers. we started to think about how it would be better if the person with dementia was somehow included in the interventions. and i thought about it perhaps being a powerful intervention. the care eases some of the burden of care givers. builds self-esteem and brings the two together. >> i think what the chorus does is brings out the best in everyone. >> dr mary mittelman says it's not a drop-off activity, it requires commitment. it has a positive impact not only on people suffering with dementia and alzheimer's, but also the care givers. we sipping, have fun, tell jokes. >> look after each other. >> it's a good thing that happened. >> have a seat. >> linbania jacobson is her husband's caregiver. everything is acceptable. there's nothing you have to worry about, inappropriate behaviour because erch understands. mary mittelman says families struggling with dementia should ask for help. if it's a secret. if no one talk