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by amelius 2094 days ago
The singing part has been investigated:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2996848/

> As illustrated in this paper, singing represents a promising therapeutic tool in a variety of neurological disorders. Singing is particularly useful in ameliorating some of the associated speech-motor difficulties because of features such as continuous voicing, decreased production rate, and increased awareness of individual phonemes. Although the precise mechanisms underlying the efficacy of singing remain largely unexplored, a number of hypotheses have been proposed