Book 4 expands on the related five-finger patterns learned in Book 3 to introduce the scales of C Major, A Minor, G Major, and E Minor. Chord progressions in close position are also presented in each of these keys. Syncopated rhythms, syncopated pedaling and opposing articulations between the hands create performances with style, color, and texture. This package includes a Piano Lessons Book and an enhanced CD. The CD works in any CD player but it also contains MIDI files for Windows and Mac computer users.