That works for me as well LEJ,I would venture to suggest that "Blaydon Races" has passed through stages 1 to 4c.(Albeit at a regional level)
As for songs that will pass through these stages,I suspect a goodly number created/popularised by Elvis,Dylan,(esp)The Beatles,Beach Boys & the Stones will go the distance.
BUT I think it's WAY to soon to do anything other than suspect this.
(I've always liked the Mao quote mentioned by Shimrod earlier,possibly the only perceptive statement ever made by a Leninist on the subject of History.)