Well I've listened to my two recordings yet again. On the Goulder/Dyer recording Liz Dyer definitely sings "Waltz Circassion", on the Ripley Wayfarer's version Mick Peat could well be singing "Bold Circassion" or it could be something else.... I've no way of knowing whether either are correct anyway. Lets see if anyone else is any more certain.
All suggestions gratefully received
Regards

John