Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The best modern jazz singer.

We often hear of people comparing new singers to Ella, there will never be another Ella but Claire Martin gets closer than any other singer. She is comfortable with ballads as well as uptempo numbers and she scats. The best song on the CD is "Empty Bed." I first heard it on KEWU radio and it was one of those songs that sticks in your head. The band is solid and innovative especially Gareth Willimas on piano. Definitely give this a listen.