Inclusion and exclusion criteria

To be included in the study, participants with dementia must

Be aged 18 or over, and diagnosed with dementia, which is at a mild or moderate level

Have a carer who spends at least 2 h per week with them

Be able to give informed consent at the start of the study

Be able to speak and understand English¹

Be willing in principle to join a singing group and attend weekly

Participants with dementia will be excluded if

They lack capacity to give informed consent

They are already attending a singing group or have done so in the past 6 weeks (other than religious services)

They have a significant hearing impairment

They are already participating in any other interventional study

They have a history of severe mental illness or drug/alcohol addiction

Carers can be included if they are

Able to speak and understand English

Willing in principle to attend the group weekly

Able to give informed consent

Relationships between people with dementia and their carers may be that of spouses/partners, parent/child or other family members, or friends. In certain cases, professional caregivers may be part of the study if no family member or friend is available to accompany a person with dementia to the sessions and if the same professional caregiver is available each week. The nature of the relationship between the dyads does not matter, but it is important that the same carer attends the sessions throughout the study.