There is at least one great site that I know of for tunes that have been notated in ABC notation. This site is terrific. And it has listed some great resources for developing your ABC skills.

BUT - I wonder; is there a similar site that focuses on Folk tunes? I'm especially interested in early American folk tunes in ABC, fiddle tunes, banjo tunes, old songs ...

Does anyone know? I've looked but had no luck.