Try and get in touch with the organisers of Haddenham Ceilidhs or Dragon Music, both in Bucks. Depending where you are, you aren't too far from London to get to Cecil Sharp House (I know one person who does it from Thame area....), or get in with one of the myriad morris teams in that area - Haddenham, Towersey, Owlswick, and many others.If I hear of anything, I'll let you know. I have a funny feeling there's a folk day coming up at Haddenham sometime this autumn.
Of course, if you are the other side of Bucks, this won't help much, but it's a start!
LTS