Music therapy emerged as a medical practice in the second half of the 20th century. Children with educational and psychological difficulties, depressed adults, elderly people suffering from neurodegenerative diseases can benefit from music therapy.
Some work has shown that among autistic people, music can be a vector of communication, and it is able to reduce behavioral problems. Music allows you to remember past experiences and experience sensations again, so it is beneficial for older people, even those with severe disabilities. A recent experiment has shown the benefit of music therapy on patients suffering from Alzheimer's disease.