I would assume a majority of the music for the upper class would be Bach, Handel, et al. I would also venture a guess that much at this time would have been folk music for the common folk. I surmise that this time period would have bawdy music synonymous with common people, not upper class.
Just my absolute conjecture. Take from it what you will.
Chole - here's a place you may look, although it's not separated by dates.
http://www.contemplator.com/folk.html