Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great resource for chord voicings...

I purchased this book because I am a big Jason Mraz fan and I read an interview about him where he said that he writes most of his songs utilizing this book. He uses the chord voicings and progressions to craft his music. Mraz stated that this was the best book that he had ever seen in respect to chord progressions and how the chords fit together. So, I ordered the book and I love it. It has been a great help to me in songwriting as well as just general knowledge of jazz chord progressions.