You know the tune was an old tavern drinking song of that era?..................
https://en.wikipedia.org/wiki/The_Anacreontic_Song
To Anachreon in heaven, where he sat in full glee,
A few sons of harmony sent a petition
That he their inspirer and patron would be,
When this answer came back from the jolly old Grecian:
"Voice, fiddle and flute no longer be mute!
I'll lend you my name and inspire you, to boot.
And besides, I'll instruct you, like me, to entwine
The myrtle of Venus with Bacchus's vine."