Vin Davis is a choreographer mentioned by Delia in the Radio Scotland interview.
as I was doing it (Way Out), the choreographer Vin Davis happened to be walking down the corridor and his feet started tapping and he said "I want that!" and I said "No, you can't! I've done it for the BBC." And so he implored me to do something in the same style, in eleven time and thirteen time, for his dance group, which I did.
The spelling of his name used here may be wrong.