I first heard of this recording a few weeks ago when a audiophile friend played it as a vinyl LP. As less of a technical sophisticate, I was pleased to find it also re-issued as a CD. It's a remarkable gem which captures two of the greatest female jazz vocalists at the same point in time at Newport Jazz Festival. Really worth a listen whether just for the simple pleasure of the music and the performances -- or as a more intellectual artistic exploration into the similarities and differences in style of these two giants.