Link to Shut Up And Play's tutorial: https://www.youtube.com/watch?v=6hiykTItfTk
Taken from her instructional video from 1996. She calls this Silver Wheels, which is also the title of the instrumental she plays on Bebe Le Strange. It is the same song, just different parts of it...if you check out live performances of her doing the intro to COY, you can see she intertwines them as she usually includes segments of the Bebe Le Strange version. She also sometimes likes to throw in a few bars of the song Hijinx from the Dog and Butterfly album, as well as a bit from Babe I'm Gonna Leave You. Here is a link to her discussing the inspiration for this song, Paul Simon's 'Angie'....or as she puts it, how she 'ripped him off' ; )
https://www.youtube.com/watch?v=ZHg0AU5Vh2I
As a side note, Paul Simon's version of this song was a redo of Davey Graham's (and then John Renbourn's) Anji'.
Link to purchase her instructional DVD:
https://www.wwbw.com/Hal-Leonard-Nancy-Wilson-Instructional-Acoustic-Guitar-DVD-with-Tab-943025.wwbw
To see what Roger Fisher is up to these days, check out this song he recently uploaded on his channel: https://www.youtube.com/watch?v=y8jjf_PEils