At one point in the early '90s, the ladies from Saffire just considered themselves blues historians, but since their performing career has gotten launched on the festival circuit, they've become much more than that. All three have developed into talented songwriters. Since blues fans are always looking for fresh themes or new twists on old themes, this trio is a sought-after club and festival act. The core members of the Virginia-based group include pianist Ann Rabson (b.