My usually hyper Standard Schnauzer, “Scotty” also seems to immediately calm down when I begin to play, and ends up asleep on his back with all four paws in the air..it’s quite a site……ditto on, “music does calm the savage beast.”
As a child, on my way to an open field to fly my kite or just play, I would always pass by a home and pause a minute to stare at a huge gold pedal harp that was kept in the window.