Scales over Chords is a book and audio guide that teaches readers how to use pentatonic scales to improvise lead lines over chord progressions. The book covers rock, country, blues, and nine other styles, and includes personal instruction on how to never play bad notes. The audio companion demonstrates all musical examples with full band back-up. The book is easy to understand and explains the relationships of scales and chords. It is an excellent resource for those starting to learn modes and how they relate to chords and melody.