Composed of preferred music genres sequenced according to the ISO-Principle in addition to usual care.

Preferred music genres played in random sequence in addition to usual care.

Usual care for agitation management.

Individualized music playlist composed of preferred music genres sequenced according to the ISO-Principle. It will be played at the state of agitation.

Positive and Negative Syndrome Scale - Excitatory Component will be used for assessing the level of agitation. It consists of 5 items: excitement, tension, hostility, uncooperativeness, and poor impulse control. The 5 items from the PANSS-EC are rated from 1 (not present) to 7 (extremely severe); scores range from 5 to 35; mean scores ≥ 20 clinically correspond to severe agitation.

Pittsburgh Agitation Scale will be used to assess the intensity of agitation. It is a brief measure of agitation that measures the severity of agitation in four general categories: aberrant vocalisation, motor agitation, aggressiveness and resisting care, on a scale from 0 (not present) to 4 (highest level).

Behavioural Activity Rating Scale will be used to assess the agitation status. It contains a single-item question consisting of seven categories: 1=difficult or unable to rouse; 2=asleep, but responds normally to verbal or physical contact; 3=drowsy, appears sedated; 4=quiet and awake (normal level of activity); 5=signs of overt (physical or verbal) activity, calms down with instruction; 6=extremely or continuously active, not requiring restraint; 7=violent, requires restraint.

Cohen-Mansfield Agitation Inventory will be used to assess the agitation occurence. A total CMAI score is obtained by summing all the individual items, giving a range from 29 to 203. A total score of >45 is usually regarded as clinically significant agitation.

Semi-structured focus group interviews with the carers will be conducted.