Fond as I am of Dr. Levitin (his book is terrific), I think that his argument is flawed. The Beatles are beneficiaries of a capitalist system that constantly pumps its favoured product (in this case a good product) around the world. Whether the Beatles are what people can instantly recognise 100 years from now is not dependent on the memorability of Beatle music vs. Mozart's 30th, but on whether we are still in the same music delivery system.

On the other hand, "Yellow Submarine" is probably inextinguishable.

yours,

Peter T.