We have four children whose ages range from 38 to 23. All of them are great fans of the music of the Beatles. They didn't discover it at the same time they each came to it at different stages of their lives. There wasn't much Beatles stuff played at home ( though I was a massive fan in my younger days), there was much more folk stuff. My children and many of their friends are also very well acquainted with the likes of the Stones, the Who, the Kinks, Donovan, Lou Reed, Pink Floyd etc. They know this stuff better than I do!

I was talking to a lad of 23 the other day who told me which Donovan albums he preferred. I didn't know any of them, I just knew the singles.

If you really want to get an idea of which popular music is going to last, don't go on your own preferences and prejudices, ask the people who are listening to and interested in music that was produced 30-40-50 years before they were born and they are many!