4(Educational Piano Library). Book 2 opens with a new My Own Song improvisation on CDEFG. Unit 1 introduces phrasing and legato touch, and presents harmonic 2nds and 3rds with staccato touch. The following two units are dedicated to the introduction of 4ths and 5ths. In Unit 3 sharps are introduced in a diatonic setting starting on D, and flats are introduced as blues notes. Most pieces in the second half of Book 2 coordinate hands playing together. This book works very well for transfer students. This version includes access to beautifully recorded audio tracks for download or streaming.