Instruct: Classify a review into positive or negative sentiment.
Query: intelligent jazz from the heart

Don't miss this gem. This unusual piano duo creates a fascinating dialogue of musical thought, full of surprises and technical prowess. Best of all, a listener can delight in their complex weavings, and also realize that this talented father-son team are exploring limits of not only music, but also of synergy and affection. The affection is borne of respect for each others' skills and of creating together some wonderful, happening music. You'll play this one over and over.