Hi again, Sorry about the double posting - the gremlins are inside my computer chewing on the wires again.
I just found an abc file of Arrane Ghelby. It's definitely the same tune.
Hooray! 9 months of a Mudcat request and 11 years since I bought the Sylvia Woods book and I finally know the answer. Thanks everyone, and especially Phillipa and Bobby Bob for finally solving the mystery.
Happy Christmas, Helen