Deletion of Popular beat combo

Comment: I've known the term for at least 50 years, but didn't know until today that the origin is probably an urban legend. That is useful and encyclopaedic information, well supported by the sources. The comparison with the ''Lady Chatterley'' trial is in one of the sources. Links to DAB pages are no reason to delete (if it were, I could nominate 4,806 articles, which is today's count). I cannot see any  This nomination strikes me as 
Stance: keep
Cited policy: Wikipedia:No original research (WP:OR||WP:IDONTLIKEIT)