Mary Lou Williams June 20, 1965
Lord notes that this was a live performance at the Jazz Piano Workshop, at the Pittsburgh Jazz Festival.
Both Bruyninckx and Lord include this session in their respective discographies -- there is, however, a discrepancy to which titles were played by the trio. Lord includes all the titles which we have reflected in this session, while Bruyninckx includes only the first two titles (45 Degree Angle and Joycie), and omits Miss D.D. entirely out of the performance.