“We’re all just heartbroken—GG Shinn died yesterday and we’re going to bury him Monday. He was my hero. I just left [Lafayette Music] where I picked up his trumpet, which he gave me a few years ago. It’s an iconic symbol of him. I was going to bring it to him this past Monday to get it cleaned and refurbished. But now I had to go and pick it up to take it to the funeral home and put it on display there.

I didn’t start p...