I wonder if you know Oliver Sacks's book A Leg To Stand On.
It's an interesting and illuminating exploration of neurological functioning, like all his work.
In this book, he explores how proprioception works, traced through his own experience of breaking his leg in a hill-walking accident.
He was in hospital for a while, then had to convalesce; during the recovery and rehabilitation, he lost the proprioception of his leg.
Proprioception is where your body recognises one of its parts as integral to the whole organism. When proprioception is lost, the nervous system rejects that body part as something that doesn't belong to you — a horrifically disconcerting experience. Sacks describes occasions where patients have discovered what they perceived as the leg of a cadaver in the bed with them, and tried to throw it out in disgust — only to find themselves inexplicably on the floor with it (since it was their own leg).
He describes how some people lose their body memory in this way, and can only do simple actions like drinking a cup of tea by conscious focus and effort. It really is a book that opens your eyes.
Sacks had a miserable time recovering from his accident; the physio sessions were challenging and his progress slow.
Then one day a friend came to visit him, bringing the gift of some recorded music (back then, a cassette tape for a Walkman, I imagine). It was a favourite — Mendelssohn, I think he said. gratefully and appreciatively, he listened to it. Then it was time to go for a physio session, where t his astonishment he found he progressed much better than usual.
The music continued to play in his consciousness during the physio session, facilitating the integration and healing of his nervous system. He began to get better.
He discovered by these means that the nervous system operates, as he put it, like a kinetic melody. Playing music supports it.
After I read that (some decades ago) I began to hum tunes to myself when I had to go into environments that tend to stress and fragment my nervous system — supermarkets, for example, or urban driving — by overwhelming levels of stimuli.
I found that some tunes and types of music particularly help and support my functioning in such environments. Schubert's Trout Quintet does the trick, and some rock and roll music — I think it's the strong rhythmic beat, that I experience as cheerfulness.
I've just discovered a new song to add to my Neurological Proprioception Playlist — José Feliciano's Feliz Navidad. As it's also seasonal, for your enjoyment — here it is.