As Sian said, I got involved in a band when I was in Aberystwyth University in the sixties. I played banjo with The Virginia Bootleggers (hah!), not a Bluegrass band but an Old Time band - we nicked all our material off the New Lost City Ramblers, though we used to sing folk and shanties as well. We used to do an annual session trip on the Devil's Bridge railway, with our Old Time band, the college New Orleans Jazz band and lots of beer - really good craic. I definitely recommend a bunch of folkies to sort a trip out.
Cheers
Ray