This is a fabulous selection of Peterson`s best as selected by long-time friend and bassist Ray Brown. It features Peterson classics such as Clark Terry`s "Mumbles," and Milt Jackson`s "Reunion Blues." I especially got a kick out of hearing Oscar`s voice in the background scatting in tune to the music he was playing on most of the tracks. Though many of the songs burgeon with energy, the sentimentality of "In The Wee Small Hours of the Morning," has Oscar in a completely different mood: It is a hauntingly romantic tune honey-dripping with emotion. "Chicago" on the other hand is a completely different ballpark...sport as a matter of fact. It is an adrenaline rush that jets when you think it is about to stop. He uses every note on the piano and is courageously backed by Brown. It is difficult to express the magnitude of this song. No wonder it is a piece of music.