It's not what you think it is, unless it is after all, in which case you guessed well and have a good scope of knowledge. I might not have figured it out, before today.
http://www.youtube.com/watch?v=3XV7mxfIIr0 aka "Pretty Polly"
(this is a bit explicit and I think representative of unchurched original Old Time music)
"TRADITIONAL Appalachian music is mostly based upon anglo-celtic folk ballads and instrumental dance tunes....most of the one hundred or so variations of the three hundred classic ballads found in American tradition are to do with sexual struggles from the female standpoint...A large percentage, perhaps almost half, of the American variations tend to be about pregnant women murdered by their boyfriends. ...
... But, even as content was changed to reflect American locations, contexts, and occupations, many nineteenth century versions of the Child Ballads still refer to Lords and Ladies, castles, and ghosts, and retain as their central theme love affairs and interpersonal relations. The churches of America were also very influential and usually more puritan in nature. Many fairly explicit lyrics were softened and cleaned up. British paganism was frowned upon, and this censorship resulted in ballads where repentance and doom supplanted sinful behavior....
...The length of recording time also shortened songs to a few verses. In the earliest days of commercial recording each band had its own regional sound; later there was a great deal of experimentation with crossovers...
...In 1922 the first recording of a rural performer, Eck Robertson, was made. Many followed. To the absolute amazement of the urban record companies, recordings made by groups from the mountains sold in huge numbers and an 'industry' was born...
...The Great Depression of the 1930s put an end to the commercial viability of old-time music...The old traditional music of the mountains gave way to the beginnings of modern commercial country-western music....
...BUT the traditional old-time Appalachian music never really died off; it just reverted back to being a participatory 'folk' music...Many old songs, originally written for commercial reasons, are now considered traditional, their composers gradually forgotten."
other seemingly random YouTube videos of the moment:
Its amazing how a innocent search for old time mountain music can lead to groping videos, isn't it?