Instruct: Classify Amazon reviews into positive or negative sentiment
Query: prefer the earlier edition

It's very sad that vital books have to be "updated" and "revised" to accomodate the writing careers of persons unable to create vital books themselves. Some of the original Clement Woods comes through here, but see if you can get hold of the earlier edition instead.Also recommended: PENTATONIC SCALES FOR THE JAZZ-ROCK KEYBOARDIST by Jeff Burns.