The Explorer Book (Level 1B) takes the student from the elementary to the late elementary level. Accidentals and key signatures are introduced as are the keys of C, G and F Major. Eighth notes and dotted rhythms are covered, and an introduction to transposition and syncopation is given. Many delightful, original works by Janet Vogt and Leon Bates are found throughout, as well as child-friendly, fun arrangements of familiar works such as Offenbach's Barcarolle and the theme to Beethoven's Fifth Symphony. Technique Tune-Ups offers musically satisfying exercises, each presented in gradual steps of increasing challenge.