Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Incredible 37.5 Minute Groove! Grabs and Holds Your Intrest

I LOVE this release, even more so than Karma and Jewels of Thought. Cecil McBee, Stanley Clarke, Billy Hart, and Norman Connors along with what sounds like an army of African percussionists lay down an amazing groove while while the horns take it in turns to go wild. There are some hornless sections that focus on the Balophone as sort of African marimba. The first time I heard Black Unity, I played it over and over again for three days straight. With the exception of what sounds like some sort of electronic keyboard fading in and out with a droning chord, it's all acoustic. Sanders is amazing. He's doing with his sax, imagination, and circular breathing what Hendrix did with an electric guitar with a battery of electronic gadgets.If you are a fan of the Impulse label, especially the late 60's and early 70's then Black Unity is essential. The energy is incredible.