50 Songs Nur Mit Powerchords and Full Energy contains 50 Songs to be played with power chords only. Timeless Rock and Pop Classics arranged for Guitar by Peter Korbel.Korbel's book teaches the use of power chords. It is both a tutorial and a songbook because it begins with a theory section, and an introduction of all the songs that are included, going on to list them again with full text and chords. / Guitare