Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: This is smart, sophisticated music.

I happened upon this group quite by accident in a bar in New York. They appeared to be a fun band with a great groove so I bought their Hardcore Juju CD. This album is GREAT!! I listen to it all the time. Although the music at first seems fun and simple, further listening reveals layers of rhythm and musical harmony that betray an exceptional knowledge of musical composition. This is a band with a future.