Instruct: Classify Amazon reviews into positive or negative sentiment
Query: a true "supergroup"

The Classical Jazz Quartet brings together four remarkable musicians--Kenny Barron on piano, Stefon Harris on vibes, Ron Carter on bass, and Lewis Nash on drums--who together produce a sound as lyrical and sophisticated as the Modern Jazz Quartet at its peak, but with a lot more punch. Rachmaninov's melodies provide fertile ground for improvisation, but above all, this album swings like a mother. Earlier albums by this group target Bach and Tchaikowski--and swing just as hard. Highly recommended!