Good to hear the news. I got there once last April, and hope to get there again this April (Revenue & Customs Winter sports weekend @ Nottingham Univ. I'm not going to the Disco!)
Just a pointer, a Google for "Robin Hood Folk Club" still gets an advert for the Nags Head & Plough:
This site as its first 'hit'. It may be worth updating

CHEERS

Nigel