(Guitar Educational). Join renowned guitar master Greg Koch as he clues you in to a wide variety of fun and valuable pentatonic scale applications. Whether you're new to improvising or have been doing it for a while, this book/CD pack will provide loads of delicious licks and tricks that you can use right away, from volume swells and chicken pickin' to intervallic and chordal ideas. The CD includes 65 demo and play-along tracks.