Check out this youtube link to see Sally Ann Forrester, who played accordion with Bill Monroe and the Blue Grass Boys back in the 1940s, playing accordion with Tommy Scott. This is wonderful footage and really shows off her playing!!!!! And she is a gorgeous woman!
The opening chapter of my book, Pretty Good for a Girl: Women in Bluegrass, is about Sally Ann.
Or here's a link if that embed doesn't work: http://www.youtube.com/watch?v=vvpMKxGdnRA