She does a gorgeous, very simple ballad with bass player Rob Wasserman, on his wonderful colaboration album called "Duets". It wasn't listed on Amazon, so it may be out of print. Get a copy if you can find one. It's a great album, and her song on it is definitely my favorite! Very stark and haunting. It is called "Ballad of the Ruanaway Horse". That one song is worth the cost of the album. There's some other talented artists on there, including Bobby McFerrin, Riki Lee Jones, Aaron Neville and Lou Reed to name a few.
