Book Three deals with concepts such as: time value of notes and rests-- e whole - sixteenth, shape of notes and rests, measures and measure bars, the G clef, ledger lines, letters of the degrees (G staff), the time signature 4/4 and counting beats, position of half steps in the scale and on the degrees, characteristics of the scale (half steps and tetrachords). The CLE Music curriculum, designed for grades 1-8, consists of 8 books with answer keys, one teacher's manual for the entire series, and Music Drill Sheets. The series is suitable for use by homeschools, individualized schools or classroom schools. Each book reviews concepts learned in previous levels. Books 4-8 are also suitable for older students who have not had previous systematic music instruction. The Teacher's Manual gives helpful suggestions for teaching the series, and for developing a well-rounded music class. The drill sheets reinforce the concepts taught in the Music books. Order these by concepts taught, and not by grade level.