response 1 of 12:

Jan 16 04:14 UTC 2002

The penultimate paragraph first:  Marketing has long been about directing
people to things like the one they are buying right now.  Columbia Record Club
was doing it, by mail, in the '70s.

Elvis Presley borrowed from the 'Black' sound of his time to create
rock-and-roll.  Cross-fertilization of 'styles' has been going on for ever.

None of which invalidates the above comments.