Instruct: Classify the given Amazon review as either positive or negative.
Query: Could IT Have Been Better??...

two great masters from different perspectives play on a bluesy moody set of songs ..stripped down and spontaneous...a real jam permeates the air..Not pure swing not pure bebop just a unique hybrid worth it's title...both are gifted indeed and it shows..Worthy of inclusion in one's collection.Pairing these two giants should have made sparks fly,they do in a sublime way...