Ken Nordine's Word Jazz Radio (1980)s

You might recognize Ken Nordine's voice from TV commercial and movie trailer voiceovers. What you might not know about is his musical work that he called "word jazz". This included several LPs and a long running radio show on NPR, one of which is linked in this submission.

He would sometimes include work from other artists in the background. In this particular program, there is a woman who can be heard singing starting at around the 3:50 mark. I'm wondering if anyone knows the name of the singer? I haven't had much luck finding any sort of credits or other information about these broadcasts.