3(Educational Piano Library). Unit 1 of Book 3 begins by introducing eighth notes in 4/4 and 2/4 time. Swing eighths are also presented in the first half of the book. Folk, jazz, classical, and contemporary selections provide students with an interesting variety of repertoire. The second half of Book 3, teaches relative and parallel major/minor five-finger patterns, and students learn to improvise their own songs using these basic patterns.