Individualized Music Playlist Based on ISO Principle for De-escalation of Agitation in Dementia

1. Study design \- Randomized controlled trial 2. Participants \- Eighty-one older adults living with dementia and demonstrate significant agitation 3. Setting: \- Residential care home 4. Intervention \- Individualized music listening intervention played with an iPad and a wireless neckband speaker for 30 minutes when agitation begins in addition to usual care. 5. Comparison conditions * Preferred music listening group: Preferred music listening played with an iPad and a wireless neckband speaker for 30 minutes when agitation begins in addition to usual care. * Usual care group: usual care 6. Outcomes * Level of agitation measured with the Pittsburgh Agitation Scale * Intensity of agitation measured with the Positive and Negative Syndrome Scale - Excited Component * Agitation occurrence frequency measured with Cohen-Mansfield Agitation Inventory * Distress of formal caregivers related to agitation measured with Neuropsychiatric Inventory 7. Focus group interviews with the care staff will be conducted as a process evaluation for identifying the potential facilitators and barriers related to implementation.