I've been pursuing my fascination with 18th Century tunes and have gone back to a facsimile copy of The Beggar's Opera by John Gay (1729) which I got in 1961. At the back are many tunes and words on which he based his 'librettos' much as Robert Burns did. The sources were mainly books like Pills to Purge melancholy' by Thomas D'Urfey (1719-20) ed. Playford. Charles II was big fan of D'Urfey. Gay frequented 'low life' venues but doesn't quote the colloquial words, other than in his spoken bits. His song words are a bit more down to earth than D'Urfey's and reflect the 'racey' times he lived in.
Anyway... even D'Urfey's words are a bit twee and I reckon he lifted older tunes, so which came first? earlier folk songs and tunes or did the ordinary people take the tunes and do their own thing? My gut reaction is that the tunes were older and you can always put new words and parodies to them.
A lot of black print broadside words seem a bit florid . has anyone got a copy of the earliest words to a fairly well known tune or did the toffs appropriate them in print? (Sounds a bit Marxist, I know, but I'd like to get an angle on it)
