When I was a kid in the 1970s, I took a couple of years of violin lessons and played in school to please my grandfather, who I loved, and wasn’t pushy about it. He had learned to play at age 4, helped found the Tucson Civic Orchestra (he was concertmaster for a time), and played until his 80s, when his arthritis made it impossible. As the owner of furniture stores, his inner life was music, all the time.