A 45-minute live music performance

Acquiring heart rate variability data via electrocardiography (ECG, EKG) allows the researchers to measure the Root Mean Square of Successive Differences (RMSSD) in people with dementia, mild cognitive impairment, and/or Alzheimer's disease. RMSSD measure parasympathetic responses in milliseconds.

Acquiring heart rate variability data via electrocardiography (ECG, EKG) allows the researchers to measure Very low frequency (VLF) in people with dementia, mild cognitive impairment, and/or Alzheimer's disease. VLF measure sympathetic responses in milliseconds squared.

Acquiring heart rate variability data via electrocardiography (ECG, EKG) allows the researchers to measure the ratio of low frequency (sympathetic response) and high frequency (parasympathetic response). This unitless measure is abbreviated as LF/HF and informs the researchers about the relationship between the SNS and PNS.

SMFSCS is a self-report questionnaire that measures the motivation individuals feel to form new connections and foster existing connection with others. 10 items on a 7-point Likert scale, from 1 (strongly disagree) to 7 (strongly agree). Total score is achieved by summing all items with total score range from 10-100. Higher scores indicate a greater motivation to create new connections and foster existing connections with others.

SMFSCS is a self-report questionnaire that measures an individual's tendency to have strong emotional responses to music. 35 items on a 5-point Likert scale, from 1 (strongly disagree) to 5 (strongly agree). Total score is achieved by summing all items with total score range from 35-175. Higher scores indicate a greater tendency to have strong emotional responses to music.

GAS is a self-report questionnaire that serves as a measure of anxiety for use with older adults. 30 items on a 5-point Likert scale, from 0 (not at all) to 3 (all of the time). Total score is achieved by summing items 1-25 with total score range from 0-75. Items 26 through 30 are used to help clinicians identify areas of concern for the respondent. Higher scores indicate more feelings of anxiety or stress.

STAI is a self-report questionnaire that measures transient and enduring levels of anxiety. 20 items on a 5-point Likert scale, from 1 (not at all) to 4 (very much so). Ten items are formed to record the presence of anxiety symptoms and the other 10 items are scored to record the absence of anxiety symptoms. Total score is achieved by summing all presence of anxiety items and inverting the absence of anxiety items with total score range from 20-80. Higher scores indicate higher levels transient and enduring anxiety.

PHQ-9 is a self-report questionnaire that assesses 8 DSM-IV diagnoses, divided into threshold disorders and subthreshold disorders. 9 items on a 4-point Likert scale, from 0 (not at all) to 3 (nearly everyday). An item was also added to the end of the diagnostic portion of the PHQ-9 asking patients who checked off any problems on the questionnaire how difficult these symptoms make the respondent's life. Total score is achieved by summing all items with total score range from 0-27. Higher scores indicate higher depression severity.

ZBI is a self-report questionnaire that measures the level of burden experienced by caregivers of patients with dementia. 22 items on a 5-point Likert scale, from 0 (never) to 4 (nearly always). Total score is achieved by summing all items with total score range from 0-88. Higher scores indicate greater burden.

QOLS is a self-report questionnaire that measures 5 conceptual domains of quality of life: material and physical well-being, relationships with other people, social, community and civic activities, personal development and fulfillment, and recreation. 16 items on a 7-point Likert scale, from 1 (terrible) to 7 (delighted). Total score is achieved by summing all items with total score range from 16-112. Higher scores indicate a greater satisfaction with life.