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Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected].

"Why do old people hate new music? – Holly L., age 14, Belmont, Mass."

When I was a teenager, my dad wasn’t terribly interested in the music I liked. To him, it just sounded like “a lot of noise,” while he regularly referred to the music he listened to as “beautiful.”

This attitude persisted throughout his life. E...