Claims

CL001: Patient remembers to do the task, Part of UC001: Daily todo list
The main difficulty of people with dementia is remembering daily tasks, so the robot reminding the users to do their tasks can help them remember and the music can help reinforce the connection to the daily tasks.

CL002: User is happy because they completed a task, Part of UC001: Daily todo list
Even if they are reminded to do the task and do not remember on their own, the patients still feel the satisfaction of having accomplished the task themselves (since the robot only reminds them and does not help accomplish the task).

CL003: Patient is happy to interact with others, Part of UC002: Visit from the care giver or loved ones
Most elderly (disregarding whether or not they suffer from dementia) are eager to interact with their family, care givers, and even with people in general [citation?]. Thus, besides the benefit of updating the todo list to suit their preferences, the users also get to interact with others.