On 6/7/2016 1:39 PM, Jim McKinney stringtet(a)charter.net
If they truly have a smattering of “folk and country" in their
repertoire, tunes like Just Because, Wabash Cannonball, She’ll Be Coming
Around The Mountain, Cripple Creek and Red River Valley might be things
they’re more familiar with that would work just fine for your purpose.
Oo, yet more good suggestions!