OK, well, I was in Geoff Bartley's songwriting group for a few years. Shawn Colvin sang backup on some of Geoff's recordings. Shawn recorded one of her albums (Fat City?) at Joni's in-home studio.
or I spent several evenings with Eric Andersen. Joni sang backup on Eric's album Blue River. I'm still rather jealous of those of you who have actually met and talked to her... lots of love Anne