(Instructional). This comprehensive book is a study of chords (normal and extended), tunings, keys, transposing, and the capo. It includes informative and clear photos, diagrams and instructions, and addresses the Are there really thousands of guitar chords?; Which chords are important to the beginner?; Must you learn all the different ways to play a C chord?; If a song seems too difficult to play, can you make it easier by changing the key?; Is a capo worth the trouble?; and more!