Duncan, Brett. Progressive Open Tuning Fingerpicking Guitar by Brett Duncan. Covers the most popular open tunings used in traditional & contemporary guitar styles including Open G, Open D, Open E & Open C tuning. Teaches basic chords & bar chords used in each tuning & contains many great sounding solos. You do not need to read music to use this book. All examples are recorded on the accompanying CD & are fun toplay as well as being authentic & informative.