Lesson Book 4 is the last in the Music for Little Mozarts series. After a review, the new concepts taught are:
Flat and sharp sign
Crescendo and diminuendo
After reviewing C position and Middle C position, G position is taught. All three positions are used alternately throughout the rest of the book, with flat and sharp notes incorporated. When the student is finished with Lesson Book 4, he/she moves into Alfred's Basic Piano Library, Prep Course, Level C. Recommended for ages 4-6.