I asked my daughter when she was 16, What's the buzz on the street with the kids? She's going, to be honest, Dad, most of my friends aren't into Kiss. But they've all been told that it's the greatest show on Earth.
You would never hear any song played twice in the same way. The words were retained, but within a certain frame there was great latitude, and the musician could improvise to his heart's content; and the more the variations and combinations, the greater the musician.
An ear for music is very different from a taste for music. I have no ear whatever; I could not sing an air to save my life; but I have the intensest delight in music, and can detect good from bad.