In recent years I’ve rediscovered going to live music gigs. Where I live in the West Midlands, there is a thriving tribute band circuit. You can see many good outfits playing the music of groups who have either died or grown too rich and lazy to play anymore. You know the ones I mean. I prefer 1970’s and 1980’s rock bands and my wife likes pop acts and we usually take turns in choosing who to see. In this story, it was my...