What are the scientific/psychological benefits of playing an instrument? For me I notice it helps me get into the machine code of my emotions, and the resonances help me reprogram them to feel better. One time I was strumming along to the grateful dead while chewing on old anger, and the strums logically morphed it into chill happiness. It hasnt bothered me since and its been 6 months or more by now.

Pic rel just my guitar lol