Mary Lou Williams November 19, 1963
There is a significant error or discrepancy on the date of this recording. Bruyninckx and Lord both include this same recording (same personnel, location, and tracks) in their respective discographies. However, Bruyninckx notes it to have taken place on June 26, 1953, while Lord notes it to have taken place TEN years later on June 26, 1963. We assume that the change from 1953 to 1963 was an honest mistake made by either of the discographers, however, the uncertainty caused by this mistake does not allow us to declare a definitive year in which this recording took place.