I like the comment that the Beeb could air again The London Folk Song Cellar programmes. There's 39 in all. The British Library has a full set of transcription discs. The concept was Peter Kennedy's to emulate a typical folk song club of the 1960s for overseas radio audiences. It was based at Cecil Sharp House (recorded in Trefusis actually) to an invited audience. There were two recording sessions each of 6 weeks long, then the recordings were edited to make 39 x 43min programmes. The performers were the traditional and revivaists of the day including such as Sandy Denny, Martin Carthy, The Watersons, Young Tradition, Alf Edwards(concertina), Shirley and Dolly Collins, Packie Byrne, The Spinners, The Yetties, etc., etc. The comperes were Robin Hall and Jimmy MacGregor. Shockingly Ewan MacColl and Peggy Seeger were never invited to become involved.