(Educational Piano Library). In Book 5 , students are introduced to sixteenth notes in various rhythm patterns. The wide variety of student selections include 3 folk, 4 jazz, 13 classical, and 8 contemporary original pieces. Scales (in both 8th and 16th-note patterns) with their cadences are presented in five major and five minor keys. Root, 1st inversion, 2nd inversion, and open position chords for each key center are also introduced.